Mack, J. (1972). Catfish farming handbook. Texas: Educator books, Inc.
Dyfyniad Arddull ChicagoMack, Jerry. Catfish Farming Handbook. Texas: Educator books, Inc, 1972.
Dyfyniad MLAMack, Jerry. Catfish Farming Handbook. Texas: Educator books, Inc, 1972.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.