Dyfyniad APA

C David Edgar & Stephen Williams. (1966). Planned beef production. Crosby lock wood and sons.

Dyfyniad Arddull Chicago

C David Edgar and Stephen Williams. Planned Beef Production. Crosby lock wood and sons, 1966.

Dyfyniad MLA

C David Edgar and Stephen Williams. Planned Beef Production. Crosby lock wood and sons, 1966.

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