00458nam a2200181Ia 4500001001000000003000500010008004100015010001100056040000900067082001800076100002800094245004700122260004100169300001100210650001400221650001100235650003000246Para_6936CHAP220125s1943 xx 000 0 und d a205722 cCHAP aPA 631.312 F3 aFaulkner, Edward Hubert aPlowman's folly /c by Edward H. Faulkner aOklahoma :b University of Oklahoma a161 p. aLabranza  aSuelos aSuelos x conservacioĢn