01010nam a22002897a 4500 CHAP 20220329140735.0 971013s1979 r 00010 d 56847 57819 61974 CHAP 631.45 S6 Soil Conservation Society of America. Ankeny, Iowa 108297 Soil conservation policies an assessment : based on material presented at the National Conference... Washington : The society, 1979 154 p. BATCH-UPD 10 20130110 UCH01 0130 BATCH-UPD 10 20130409 UCH01 2125 BATCH-UPD 10 20130914 UCH01 2038 CONVERSION 10 20130109 UCH01 1331 Suelos Conservación Leyes. 110303 BK LIBRO 631.45 S6 BC LIBRO 33724000075479 LIBRO c.2 72040 61974 i 631.45 S6 BC LIBRO 33724000075487 LIBRO I.136786 71765 61974 i 56847 56847 0 0 ddc 0 2 0 GRAL BC BC PP_GRAL 2019-12-31 I.136786 LIBRO 0 631.45 S6 33724000075479 2019-12-31 00:00:00 c.2 2019-12-31 LIBRO 0 0 ddc 0 2 0 GRAL BC BC PP_GRAL 2019-12-31 LIBRO 0 631.45 S6 33724000075487 2019-12-31 00:00:00 2019-12-31 LIBRO