Biblio

W. E. Scott, van Steenderen, R. A., and Welch, D. I., “Health aspects of eutrophication”. National Institute for Water Research, Pretoria, South Africa, p. 12 p.: ill., 1985.

P. K. Institute Lahore, “Proceedings of the national panel on algae and its utilization, held in April 1976”. West Pakistan University of Engineering and Technology, Institute of Public Health, Lahore, Pakistan, p. iii, 61 p. : tab., 1976.