00489nam a2200157Ia 4500008004100000020001500041082001600056100002300072245004400095260006500139300000800204650004100212650003400253653002200287700002200309170901s1982    xx            000 0 und d  a0813421705  a631.4bB71A  aBosworth, Duane A. 0aApproved Practices in Soil Conservation  aDanvillebThe Interstate Printers and Publishers, Inc.c1982  a470  aAgriculture and related technologies  aTechnology (Applied sciences)  aSoil conservation  aFoster, Albert B.