@book{50773,
	author = {Turk, Jonathan.},
	title = {Ecosystems, energy, population /},
	publisher = {Saunders,},
	year = {1975.},
	series = {Saunders golden series in environmental studies},
	address = {Philadelphia :},
	note = {Supplemented by: Instructor's guide to accompany Ecosystems, energy, population /Jonathan Turk [and others]. (49 p. ; 27 cm.) published : Philadelphia : Saunders, 1975. Call number: QH541.E32 Suppl.}
}