O. P. Bhalla

Studies on the development biology of Tropilaelaps clareae Delfinado and Baker (Acarina: Laelapidae) vis a vis the threshold stage in the life cycle of Apis mellifera Linn. (Hymenoptera: Apidae).

(1993)

Experimental & Applied Acarology .

R. Kumar

,Neelima R. Kumar

,O. P. Bhalla