Dyfyniad APA

Smith, P. (1976). Food Production and its Consequences (2n ed.). California, Cunnings.

Dyfyniad Arddull Chicago

Smith, Philip. Food Production and Its Consequences. 2n ed. Menlopark: California, Cunnings, 1976.

Dyfyniad MLA

Smith, Philip. Food Production and Its Consequences. 2n ed. California, Cunnings, 1976.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.