Earth resources / ed. Charles F. Park Jr
Earth resources / ed. Charles F. Park Jr
. - 1. ed
. - xxa Washington, D.C. xxa-fimyyc Voice of America yyc-fim, 1973
. - 349 p. 21 cm
. - (Forum series))
(Brochado) : oferta
Recursos naturais
Mineral
Salinas
Metais
Água
Solos
Energias
Ambiente
504