A monograph on fossil bees (Hymenoptera: Apoidea)
Zeuner, Frederick Everard, 1905-1963 Manning, Francis Joseph Morris, Samuel Francis
Article
1976
Bulletin of the British Museum (Natural History) Geology
27
149--268
BioStor
English
London, BM(NH),
BioStor: https://biostor.org/reference/118665