na INLIS000000000018601 Ind 0010-1218000439 Economic of agriculture HALSROW, HAROLD G Halsrow, Harold G. Auckland Mc Graw-Hill 1981 xiv, 383 p. xiv, 383 p. 0-07-025556-3 ills. 63.003.1 AGRICULTURE ECONOMIC ASPECTS 3434/84