Dyfyniad APA

Sjo,John. (1976). Economics for Agriculturalists: A Beginning Text in Agricultural Economics. Copyright Grid. Inc.

Dyfyniad Arddull Chicago

Sjo,John. Economics for Agriculturalists: A Beginning Text in Agricultural Economics. Ohio: Copyright Grid. Inc, 1976.

Dyfyniad MLA

Sjo,John. Economics for Agriculturalists: A Beginning Text in Agricultural Economics. Copyright Grid. Inc, 1976.

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