Dyfyniad APA

Efferson, J. N. (1953). Principles of farm management: (International Student edition). New York: McGraw - Hill.

Dyfyniad Arddull Chicago

Efferson, J. Norman. Principles of Farm Management: (International Student Edition). New York: McGraw - Hill, 1953.

Dyfyniad MLA

Efferson, J. Norman. Principles of Farm Management: (International Student Edition). New York: McGraw - Hill, 1953.

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