@book{72531,
	author = {United Nations Environment Programme and Symoens,J.J. },
	title = {The Ecology And Utilization Of African Inland Waters /},
	publisher = {United Nations Environment Programme,},
	year = {1981 .},
	address = {Nairobi :},
	edition = {First Edition},
	url = {https://fll.law.cu.edu.eg/fulltext/bks/B11-09665.pdf}
}