APA引文

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引文

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

警告：這些引文格式不一定是100％准確.