@book{175120,
	author = {Negrón-Navas, Eduardo M. and Fiddler, González & Rodríguez.},
	title = {Puerto Rico environmental law handbook},
	publisher = {Government Institutes},
	year = {c1990.},
	series = {State environmental law handbook series},
	address = {Rockville, Md.},
	note = {"October 1990"--T.p. verso.}
}