@book{370,
	author = {Zimmerman, Erich W},
	title = {Introducción a los recursos mundiales.},
	publisher = {Oikos-Tau, },
	year = {1966.},
	series = {Oikos, libros de economía},
	address = {Barcelona : },
	edition = {1ra.ed.},
	note = {Incluye bibliografía.}
}