TY - BOOK AU - Page, Talbot ED - Resources for the Future, Washington D.C TI - Conservation and economic efficiency: An Approach to materials policy SN - 0801819512 U1 - 338.0973 20 PY - 1977/// CY - Baltimore PB - John Hopkins Uni Pr KW - Conservation of natural resources--United States KW - Recycling(Waste, etc.) KW - Raw materials--United States KW - Production economics KW - Economics ER -