Ostman, R. E. (1989). Communication and Indian agriculture. Sage Publications.
Chicago Style aipamenaOstman, Ronald Elroy. Communication and Indian Agriculture. New Delhi ; Newbury Park, Calif.: Sage Publications, 1989.
MLA aipamenaOstman, Ronald Elroy. Communication and Indian Agriculture. Sage Publications, 1989.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.