00402nam a2200157 i 4500 2225400733 DLC 631 MAS 1975 Nahal, Ibrahim. Principes de conservation du sol / Paris : Masson, 1975. 143 p. : ill. ; 24 cm. Collection de géographie applicable Soil conservation. EK 11317 11317 0 0 0 631_000000000000000_MAS_1975_A036_OR 0 58915 LBA LBA A036 2017-08-01 631 MAS 1975 A036 Or. A11132 2017-08-01 2017-08-01 EK 0 0 0 631_000000000000000_MAS_1975_A105_OR 0 70182 LBA LBA A105 2018-01-23 631 MAS 1975 A105 Or. A11676 2018-01-23 EK