The human impact on a Montane Oak forest in Costa Rica - Schubel, Richard John ([Los Angeles, California], 1980)
Thesis (doctor of philosophy geography)--University of California, Los Ángeles, 1980
Keywords: DEFORESTACION -- COSTA RICA; NATURALEZA -- EFECTO DE LOS SERES HUMANOS -- COSTA RICA; IMPACTO AMBIENTAL -- COSTA RICA