Graaf, G. d. (1996). Artificial reproduction and pond rearing of the African catfish Clarias gariepinus in sub-Saharan Africa: A handbook. Rome: FAO.
Dyfyniad Arddull ChicagoGraaf, Gertjan de. Artificial Reproduction and Pond Rearing of the African Catfish Clarias Gariepinus in Sub-Saharan Africa: A Handbook. Rome: FAO, 1996.
Dyfyniad MLAGraaf, Gertjan de. Artificial Reproduction and Pond Rearing of the African Catfish Clarias Gariepinus in Sub-Saharan Africa: A Handbook. Rome: FAO, 1996.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.