PETULLA, JOSEPH M. ENVIROMENTAL PROTECTION IN THE UNITED STATES: INDUSTRY, AGENCIES, ENVIRONMENTALISTS - S.E. - Estados Unidos SAN FRANCISCO STUDY CENTER 1987 SAN FRANCISCO - 199 ISBN: 093643421X LCCN: 31988 Subjects--Topical Terms: ECOLOGIAINDUSTRIAMEDIO AMBIENTEPROBLEMAS SOCIALES Dewey Class. No.: 574.526