@book{5609,
	author = {Watt,G.R. and Macgregor,J.J.},
	title = {The Planning and Evaluation of Forestry Projects /},
	publisher = {Commomnwealth Forestry Institute ,},
	year = {c1973.},
	address = {University of Oxford :},
	note = {Includes bibliographical references (p.75-83)}
}