Sharma T C, C. O. (1989). Green revolution gaps: A geographical analysis. Rawat publications.
Dyfyniad Arddull ChicagoSharma T C, Coutincho O. Green Revolution Gaps: A Geographical Analysis. Jaipur: Rawat publications, 1989.
Dyfyniad MLASharma T C, Coutincho O. Green Revolution Gaps: A Geographical Analysis. Rawat publications, 1989.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.