APA aipamena

Singh, Y. P. (1973). Key-communicators of agricultural innovations. Satish Book Enterprise.

Chicago Style aipamena

Singh, Yogendra Pal. Key-communicators of Agricultural Innovations. Agra: Satish Book Enterprise, 1973.

MLA aipamena

Singh, Yogendra Pal. Key-communicators of Agricultural Innovations. Satish Book Enterprise, 1973.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.