00617nam a2200169   45000010005000000030003000050050017000080080041000250350018000660350017000840500023001011000021001242450115001452600032002609520138002929990017004308920UR20220428113846.0061102|||||||||||||||||||||||||||||||| d  a(janium) 8909  a(janium)8909 4aHC110b.E5F76 19731 aPursell, Carroll10aFrom conservation to ecologyb : the development of enviromental concern : problem studies in american history  bThomas Y. Crowell Co.c1973  00102lcc40708RETROaURBCbURBCcRETRO2d2022-04-28eCompral0oHC110 E5F76 1973 p0017006r2022-04-28 00:00:00w2022-04-28yLIBRO  c39682d39682