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090 _aPA FOLLETO 2017
100 _aWinter, O. B
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245 _aThe durability of concrete drain tile II /
_c O. B. Winter
260 _aEast Lansing, Michigan :
_b Agricultural College
300 _a12 p.
440 _aMichigan. Agr. Coll. Special Bull; 82
_9168725
650 _aTubos de concreto
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901 _aPA FOLLETO 2017
902 _aA
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