00269nam a22000977a 4500003000400000008004100004082001600045100002000061245006100081260002900142OSt230701b        |||||||| |||| 00| 0 eng d  a338.1bR59I  aRobertson, C.A.  aIntroduction to Agricultural Economics & Farm Management  aBombayTT.M.H. ed.c1971