TY - BOOK AU - Zimmermann,Erich W. TI - World resources and industries: a functional appraisal of the availability of agricultural and industrial materials U1 - 330.9 18 PY - 1951/// CY - New York PB - Harper KW - Natural resources KW - Industries KW - Agriculture KW - Economic aspects KW - Economic geography N1 - Includes bibliographies ER -