Aalbers, A.F. (Albert Frederik) / CollectionC. Aandewiel: materials Bonda and Van Duyne / CollectionAcademy of Architecture, Amsterdam / ArchiveApon, Van den Berg, ter Braak & Tromp / ArchivesRoyal Academy of Art The Hague: drawings / CollectionPrints used as teaching materials, Academy of Fine Arts The Hague / CollectionConcertgebouw Amsterdam: drawings / CollectionThe 8 and Construction / CollectionExhibition materials Architecture International Rotterdam (AIR) / CollectionArchitekten Kollektief Heijdenrijk Amersfoort (AKHA) / ArchiveAngenot, L.H.J. (Laurens Hubert Joseph) / ArchivesRichter's Anchor building blocks / CollectionGenootschap Architectura et Amicitia / ArchivesArkel, G. (Gerrit) van / ArchivesJournal L'Architecture Vivante / Archives.Augustin, F.P. (Felix Paul) / CollectionBaanders, H.A.J. (Herman Ambrosius Jan) and Baanders, J. (Jan) sr. / ArchivaliaBakker, R. (Riek) and Bleeker, A. (Ank) / CollectionPhoto archive of Brick magazine / ArchiveBaljeu J. (Joost) / ArchivesBan, J. (Jacob) Pzn. van den / ArchivesDutch Concrete Company BATO / CollectionBeaumont, C.C. (Cornelis Christiaan) van / ArchivesBerg, B.O. (Bart Olof) van den / ArchivesBergmans, J.B. (Johannes Baptiste / John) / ArchivesBerkovich, E. (Elmar) / ArchiveBerghoef, J.F. (Johannes Fake)/ ArchiveBerg, P.T. (Paul Tames) van den / ArchivesSpecifications / CollectionBettenhausen, F.J.C. (Frederik Johannes Cornelis) Art Forge Rotterdam / ArchivesBeusekom, H.G. (Hendrik Gerrit) van / Archives.Beyderwellen, B.H. and B.D. / CollectionBond Heemschut / CollectionFine Arts / CollectionBlaauw, C.J. (Cornelis Jouke) / ArchivesBleeker R.D. (Rutger Dirk) / ArchivesBleijs A.C. (Adrianus Cyriacus) / ArchivaliaBlijstra, R. (Reinder) / CollectionBlomhert, I. (Isaac) / ArchivesBond van Nederlandse Architecten (BNA) and of legal entities affiliated with the BNA / Archives