Edwards, C. A. (1993). Agriculture and the environment: Papers presented at the International Conference on Agriculture and the Environment, 10-13 november 1991. Elsevier.
Чикаго-гийн эшлэл (17 дахь хэвлэлт)Edwards, Clive A. Agriculture and the Environment: Papers Presented at the International Conference on Agriculture and the Environment, 10-13 November 1991. Amsterdam: Elsevier, 1993.
MLA -ийн эшлэл (9 дэх хэвлэлт)Edwards, Clive A. Agriculture and the Environment: Papers Presented at the International Conference on Agriculture and the Environment, 10-13 November 1991. Elsevier, 1993.
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