Suggest "Breeding Techniques and Selection for Breeding of the Honeybee" freidrich Ruttner , written in German and Translated by Asheigh and Eric Milner Published by British Isles Bee Breeders Assoc Available on interlibrary Loan from University of Conn ,Waterbury Branch Bee Collection R 982 B 832 I am reading it now and will be returning it after Labor Day