TY - BOOK AU - UNITED STATES , INTERGOVERMENTAL RELATIONS ( Commission on--) . ED - UNITED STATES , INTERGOVERMENTAL RELATIONS ( Commission on--) . TI - A Study committee report on natural resources and conservation U1 - X : 271 . 73 . N55r, J5 PY - 1955/// CY - Washington PB - U.S Government printing office . ER -