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_a631.4 _bL915s |
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| 100 | _aLotkowski, Wladyslaw M. | ||
| 245 | 1 | _aSOIL | |
| 260 |
_aChicago _bEducational Methods _cc1966 |
||
| 300 | _a123 | ||
| 440 |
_aAn Em Self-Instructional Program _v |
||
| 500 | _aAnswer Mask Laid In | ||
| 650 | _aSoil Science -- Programmed Instruction | ||
| 964 | _gCIRC | ||
| 997 | _a78242 C | ||
| 999 |
_c440276 _d440276 |
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