References
- Srikameswaran , K. and Gesser , H. D. 1978 . J. Environmental Science and Health, , 13 : 415
- Butterworth , J. , Lester , P. and Nickless , G. 1972 . Mar. Poll. Bull. , 3 : 72
- Murata , I. , Hirano , T. , Saeki , Y. and Nakagawa , S. 1970 . Bull, Soc. Int. Chir., , 1 : 34
- Anon . 1971 . U. S. Geol. Surv, Circ., , 643 : 1
- 1978 . “Water Quality Data, Manitoba (1961–1976)” , Ottawa, , Canada : Inland Waters Directorate, Water Quality Branch .