APA استشهاد

Nigam,A K, & Gupta,V K. (1979). Hand book on analysis of agricultural experiments. I A S R I Library avenue.

استشهاد بنمط شيكاغو

Nigam,A K, و Gupta,V K. Hand Book on Analysis of Agricultural Experiments. New Delhi: I A S R I Library avenue, 1979.

MLA استشهاد

Nigam,A K, و Gupta,V K. Hand Book on Analysis of Agricultural Experiments. I A S R I Library avenue, 1979.