Ostman, R. E. (1989). Communication and Indian agriculture. Sage Publications.
Dyfyniad Arddull ChicagoOstman, Ronald Elroy. Communication and Indian Agriculture. New Delhi ; Newbury Park, Calif.: Sage Publications, 1989.
Dyfyniad MLAOstman, Ronald Elroy. Communication and Indian Agriculture. Sage Publications, 1989.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.