Fourth World Wilderness Congress Worldwide Conservation : proceedings of the Symposium on Biosphere Reserves, september 11-18, 1987 YMCA of the Rockies Estes Park Center, Estes Park, Colorado, USA - Gregg, William P.; Krugman, Stanley L.; Wood, James D.; World Wilderness Congress Worldwide Conservation 1987 : Colorado, USA) (Atlanta, Georgia : U.S. Department of the Interior National Park Service, Science Publications Office, 1987)
Keywords: CONSERVACION DE LA BIODIVERSIDAD -- CONGRESOS; RESERVAS DE LA BIOSFERA -- CONGRESOS; CONSERVACIÓN DE LOS RECURSOS NATURALES -- CONGRESOS; CONSERVACION DE LA BIODIVERSIDAD MARINA -- CONGRESOS; DESARROLLO SOSTENIBLE -- CONGRESOS; REGIONES SUBDESARROLLADAS