Ruttner, F. Breeding Techniques and Selection for Breeding of the Honeybee. 6th Ed. Pub. BIBBA. 1988
pp.152 with figs. in text. Fine softback. Out-of-print. Scarce.
This book is still very much in demand and the techniques are used around the world. Recommended.
£45.00 [Ref: 58771]