00340nam a2200121 a 4500041000800000082001800008100002000026245008100046260003700127300001000164650002000174650002400194  aeng  a333.7bR35l15  aRenne, Roland R  aLand economicsbprinciples, problems, and policies in utilizing lanresources  aNew YorkbHarper  Brothersc1958  a599 p  aREFORMA AGRARIA  aECONOMIA DE TIERRAS