APA

Biological Monitoring of Water and Effluent Quality, Dickson K. L., Cairns J., Westlake G. F. & American Society for Testing and Materials. (1976). Sypmosium on biological monitoring of water and effluent quality , Blacksburg, Va., 2-4 Nov. 1975. Philadelphia: American Society for Testing and Materials.

Chicago

Biological Monitoring of Water and Effluent Quality, Dickson Kenneth L, Cairns John, Westlake G F and American Society for Testing and Materials. 1976. Sypmosium on biological monitoring of water and effluent quality , Blacksburg, Va., 2-4 Nov. 1975. Philadelphia: American Society for Testing and Materials.

Harvard

Biological Monitoring of Water and Effluent Quality, Dickson K. L., Cairns J., Westlake G. F. and American Society for Testing and Materials. (1976). Sypmosium on biological monitoring of water and effluent quality , Blacksburg, Va., 2-4 Nov. 1975. Philadelphia: American Society for Testing and Materials.

MLA

Biological Monitoring of Water and Effluent Quality, Dickson Kenneth L, Cairns John, Westlake G F and American Society for Testing and Materials. Sypmosium on biological monitoring of water and effluent quality , Blacksburg, Va., 2-4 Nov. 1975. Philadelphia: American Society for Testing and Materials. 1976.