00415nam a2200145   45000010005000000030003000050050017000080080041000250350018000660350017000840500022001011000020001232450092001432600034002358538UR20220428113532.0061102|||||||||||||||||||||||||||||||| d  a(janium) 8527  a(janium)8527 4aHD1761b.C54 19681 aClawson, Marion10aPolicy directions for US agricultureb : long range choices in farming and rural living  bThe Johns Hopkins Pressc1968