1. |
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出版社:
ASA,
出版日期: 1976.
文献类型:
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2. |
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Non-point water quality concerns :: legal and regulatory aspects : proceedings of the 1989 National Symposium, December 11-12, 1989, New Orleans Marriott, New Orleans, Louisiana.
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出版社:
American Society of Agricultural Engineers,
出版日期: c1989.
文献类型:
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3. |
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Crop production with conservation in the 80's :: proceedings of the American Society of Agricultural Engineers Conference on Crop Production with Conservation in the 80's, December 1-2, 1980, Palmer House, Chicago, Illinois.
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出版社:
ASAE,
出版日期: c1981.
文献类型:
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4. |
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Forest regeneration :: the proceedings of the Symposium on Engineering Systems for Forest Regeneration, March 2-6, 1981, Jane S. McKimmon Center for Extension and Continuing Education, Raleigh, North Carolina.
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出版社:
American Society of Agricultural Engineers,
出版日期: 1981.
文献类型:
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公开/私有: | 公开 私有 |