Παραπομπή APA

Husain, M. (1982). Crop combinations in India: A study. Concept.

Παραπομπή Chicago Style

Husain, Majid. Crop Combinations in India: A Study. Delhi: Concept, 1982.

Παραπομπή MLA

Husain, Majid. Crop Combinations in India: A Study. Concept, 1982.