National materials policy : Proceedings of a joint meeting of the national academy of sciences-national academy of engineering october 25-26, 1973, washington, d. c. - 215 páginas

Auspiciado por the national science foundation and the u. s. bureau of mines

0309022479


Recursos naturales--Estados Unidos--Congresos
Politica ambiental--Estados Unidos--Congresos

HC110.E5 / N3 1975