Edwards, C. A. (1993). Agriculture and the environment: Papers presented at the International Conference on Agriculture and the Environment, 10-13 november 1991. Elsevier.
Chicago Style (17th ed.) ZitazioaEdwards, 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 (9th ed.) ZitazioaEdwards, Clive A. Agriculture and the Environment: Papers Presented at the International Conference on Agriculture and the Environment, 10-13 November 1991. Elsevier, 1993.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.