Dyfyniad APA

Hardy, R., & Meadowcroft, S. (1990). Indoor beef production. Farming Press.

Dyfyniad Arddull Chicago

Hardy, Ron, and Sam Meadowcroft. Indoor Beef Production. Ipswich: Farming Press, 1990.

Dyfyniad MLA

Hardy, Ron, and Sam Meadowcroft. Indoor Beef Production. Farming Press, 1990.

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