| Oj00ba | Noord-Holland fysisch | Broekmeyer, M.E.A. & J.B. den Ouden | A-locatiebossen in Noord-Holland / IBN-rapport nr. 301 | 1997 | Instituut voor Bos- en Natuuronderzoek, Wageningen |
| Gf99aa | insecten specifiek | Macadam, C. & C. Bennett | A pictorial guide to British Ephemeroptera | 2010 | FSC, Shrewsbury |
| Nd02hz | Parijs stadsparken en natuur specifiek | Broglie, L.A. de | A Parisian cabinet of curiosities / Deyrolle | 2017 | Flammarion, Parijs |
| Ob01aa | Noordzee | Alphen, J.S.L.J. van & M.A. Damoiseaux | A morphological map of the Dutch shoreface and adjacent part of the continental shelf | 1987 | Ministerie van Verkeer en Waterstaat, Den Haag |
| Ge99aa | spinachtigentaxa en myriapodataxa specifiek | Krantz, G.W. | A manual of acarology | 1978 | Oregon State University Book Stores, Corvallis |
| Gf01aa | oerinsecten, springstaarten en zilvervisjes | Hopkin, S.P. | A key to the Collembola (springtails) of Britain and Ireland | 2007 | FSC, Shrewsbury |
| Gf07aa | vliegen en muggen | Davies, L. | A key to the British species of Simuliidae (Diptera) in the larval, pupal and adult stages / Freshwater Biological Association Scientific Publication nr. 24 | 1968 | Freshwater Biological Association, Windermeer |
| Gf99aa | insecten specifiek | Macan, T.T. | A key to the adults of the British Trichoptera / Freshwater Biological Association Scientific Publication nr. 28 | 1973 | Freshwater Biological Association, Windermeer |
| Ka00aa | milieu | Kielich, W. | A is de aarde die gaat er straks aan, B is buurman die heeft het gedaan / Verbitterd verklarend handwoordenboek voor milieu-ijveraars en -bezorgden | 1972 | Semper Agendo, Apeldoorn |
| Db01aa | platentektoniek en tijdreconstructie | Gradstein, F., J. Ogg & A. Smith (red.) | A geologic time scale 2004 | 2004 | Cambridge University |
| Eg01ab | microbiologie (inclusief microscopie) | Deyer, B.D. | A field guide to bacteria | 2003 | Cornell University, Ithaca Londen |
| Gi01zz | zangvogels overig | Balen, J.H. van | A comparative study of the breeding ecology of the Great tit Parus major in different habitats / Ardea | 1973 | Rijkskuniversiteit Leiden |
| Ei01aa | medische biologie en gezondheidskunde | Backhouse, K.M. & R.T. Hutchings | A colour atlas of surface anatomy / Clinical and applied | 1990 | Wolfe Medical, Londen |
| Hz00aa | fungoïden divers | Snowdon, A.L. | A colour atlas of post-harvest diseases & disorders of fruits & vegetables / deel 1 / General introduction & fruits | 1990 | Wolfe Scientific, Londen |
| Ha04ca | schimmelkunde/mycologie | Bresinsky, A. & H. Besl | A colour atlas of poisonous fungi / A handbook for pharmacists, doctors, and biologists | 1990 | Wolfe, z.pl. |
| Fa01ba | plantkunde/botanie | Bowes, B.G. | A colour atlas of plant structure | 2004 | Manson, Londen |
| Ei99aa | medische biologie en gezondheidskunde specifiek (bv sexuologie, endocrinologie) | Hall, R. & D.C. Evered | A colour atlas of endocrinology | 1991 | Wolfe Medical, Londen |
| Te00aa | Sociale wetenschappen | Jarnet A. (red.) | A colloquium on the future of environmental education in a postmodern world? / Quel est l’avenir de l’éducation environnementale à l’ère du postmodernisme? | 2000 | Yukon College |
| Ga03ba | ongewervelden | Russell-Hunter, W.D. | A biology of higher invertebrates / Current concepts in biology series | 1969 | Macmillan, New York / Collier Macmillan, Londen |
| Gf03aa | libellen | Corbet, Ph.S. | A biology of dragonflies / Aspects of zoology | 1962 | Witherby, Londen |
