@book{6228,
	author = {Field, Barry C. and Cano, Leonardo, },
	title = {Economía y medio ambiente / },
	publisher = {McGraw-Hill, },
	year = {1996.},
	address = {Santafé de Bogotá : },
	edition = {Editora Martha Edna Suárez R.},
	note = {Incluye bibliografía e índice.}
}