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01323aam a2200349 a 4500 001 22D6750EEA6111E094823B976AFF544E 003 SILO 005 20110929010228 007 he umb---buca 008 840911s1984 dcua bb f000|0 eng d 035 $a (OCoLC)711714573 040 $a GPO $c GPO $d SILO $d SILO 043 $a n-us--- 074 $a 42-C (MF) 086 0 $a A 1.107:513 100 1 $a Bills, Nelson L. 245 1 $a Assessing erosion on U.S. cropland $h [microform]: $b land management and physical features / $c Nelson L. Bills, Ralph E. Heimlich. 260 $a Washington, D.C. : $b U.S. Dept. of Agriculture, Economic Research Service : $c 1984. 300 $a iv, 19 p. : $b ill. ; $c 28 cm. 440 0 $a Agricultural economic report ; $v no. 513 533 $a Microfiche. 500 $a Distributed to depository libraries in microfiche. 500 $a "July 1984"--P. [ii] 504 $a Bibliography: p. 17-18. 650 0 $a Soil erosion $z United States. 650 0 $a Soil conservation $z United States. 700 1 $a Heimlich, Ralph E. 710 1 $a United States. $b Economic Research Service. $b Economic Research Service. 740 0 $a Assessing erosion on US cropland. 941 $a 1 952 $l OVUX522 $d 20180119021705.0 956 $a http://locator.silo.lib.ia.us/search.cgi?index_0=id&term_0=22D6750EEA6111E094823B976AFF544EInitiate Another SILO Locator Search