Larvae of the Apidae Hymenoptera, Apoidea : part I. Apni, Apis /

by Torchio, Philip F. 1933-2013
Published 1975

The biology and external morphology of bees : with a synopsis of the genera of northwestern america /

by Stephen, William Procuronoff 1927-2016
Published 1969

Pollination of cultivated plants in the tropics /

by Accorti, Marco
Published 1995