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

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