John S. Gray, A. D. M. Manual of methods in aquatic environment research Part 11: Biological assestment of marine pollution-with particular reference to benthos. FAO.
Dyfyniad Arddull ChicagoJohn S. Gray, Alasdoir D. McIntyre. Manual of Methods in Aquatic Environment Research Part 11: Biological Assestment of Marine Pollution-with Particular Reference to Benthos. FAO.
Dyfyniad MLAJohn S. Gray, Alasdoir D. McIntyre. Manual of Methods in Aquatic Environment Research Part 11: Biological Assestment of Marine Pollution-with Particular Reference to Benthos. FAO.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.