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Land use : tough choices in today's world : the proceedings of a national symposium, March 21-24, 1977, in Omaha, Nebraska. (Special publication - Soil Conservation Society of America ; no. 22)

Land use : tough choices in today's world : the proceedings of a national symposium, March 21-24, 1977, in Omaha, Nebraska. (Special publication - Soil Conservation Society of America ; no. 22)
Paper図書
Soil Conservation Society of Americac1977.<DC951-59>
National Diet Library
  • Title Heading...ty of America. Special publication - Soil Conservation Society of America ; no. 22.

Soil erosion : prediction and control : the proceedings of a National Conference on Soil Erosion, May 24-26, 1976, Purdue University, West Lafayette, Indiana. (Special publication - Soil Conservation Society of America ; no. 21)

Soil erosion : prediction and control : the proceedings of a National Conference on Soil Erosion, May 24-26, 1976, Purdue University, West Lafayette, Indiana. (Special publication - Soil Conservation Society of America ; no. 21)
Paper図書
Soil Conservation Society of Americac1977.<RB64-268>
National Diet LibraryOther Libraries in Japan
  • Title Heading...ty of America. Special publication - Soil Conservation Society of America ; no. 21.

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