Παραπομπή APA

DR.D.P.Abrol. Honey bee diseases and their management. kalyani.

Παραπομπή Chicago Style

DR.D.P.Abrol. Honey Bee Diseases and Their Management. ludhiana: kalyani.

Παραπομπή MLA

DR.D.P.Abrol. Honey Bee Diseases and Their Management. kalyani.