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.
Lua i Stíl Chicago (17ú heag.)John 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.
Lua MLA (8ú heag.)John 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.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.