Ostman, R. E. (1989). Communication and Indian agriculture. Sage Publications.
Lua i Stíl Chicago (17ú heag.)Ostman, Ronald Elroy. Communication and Indian Agriculture. New Delhi ; Newbury Park, Calif.: Sage Publications, 1989.
Lua MLA (8ú heag.)Ostman, Ronald Elroy. Communication and Indian Agriculture. Sage Publications, 1989.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.