Ostman, R. E. (1989). Communication and Indian agriculture. Sage Publications.
Čikaški stil citiranja (17. izdanje)Ostman, Ronald Elroy. Communication and Indian Agriculture. New Delhi ; Newbury Park, Calif.: Sage Publications, 1989.
MLA način citiranja (8. izdanje)Ostman, Ronald Elroy. Communication and Indian Agriculture. Sage Publications, 1989.
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