@book{9370,
	author = {Clapham, W. B., jr. and Pestel, R. F. ; jt. auth.},
	title = {A common framework for integrating the economic and ecologic dimensions of human ecosystems},
	publisher = {International Institute for Applied System Analysis,},
	year = {v.d.},
	series = {IIASA, Austria Research memorandum 78-29, 78-30},
	address = {Luxemburg:}
}