@book{9308,
	author = {Andrews, William A. and Stoker, Daniel G.},
	title = {A guide to the study of freshwater ecology.},
	publisher = {Prentice-Hall},
	year = {[1972]},
	series = {Contours: Studies of the environment},
	address = {Englewood Cliffs, N.J.},
	note = {Cover title: Freshwater ecology.}
}