Παραπομπή σε μορφή APA (7η εκδ.)

International Union for Conservation of Nature and Natural Resources & Dugan, P. J. (1990). Wetland conservation: A review of current issues and required action. IUCN - The World Conservation Union.

Παραπομπή σε μορφή Chicago (17η εκδ.)

International Union for Conservation of Nature and Natural Resources και Patrick J. Dugan. Wetland Conservation: A Review of Current Issues and Required Action. Gland: IUCN - The World Conservation Union, 1990.

Παραπομπή σε μορφή MLA (9th εκδ.)

International Union for Conservation of Nature and Natural Resources και Patrick J. Dugan. Wetland Conservation: A Review of Current Issues and Required Action. IUCN - The World Conservation Union, 1990.