TY - BOOK AU - Clawson, Marion, AU - ED - ED - ED - ED - SN - 2 PY - 1964///46 CY - Baltimore] PB - Published for Resources for the Future by the Johns Hopkins Press KW - KW - 2 KW - 0 KW - 6 KW - 20 KW - Natural resources.;Economic development N1 - Includes bibliographies; 5 ER -