APA citiranje

Gren, I. (1994). Economic evaluation of Wetlands: A survey. Sweden: Beijer Discusion Paper.

Trích dẫn kiểu Chicago

Gren, Ing-Marie. Economic Evaluation of Wetlands: A Survey. Sweden: Beijer Discusion Paper, 1994.

MLA citiranje

Gren, Ing-Marie. Economic Evaluation of Wetlands: A Survey. Sweden: Beijer Discusion Paper, 1994.

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