APA-viite (7. p.)

Visayas State College of Agriculture. ViSCA-GTZ Program on Applied Tropical Ecology & Widmann, P. (1998). A Guide to the ecosystems of Palawan, Philippines. Times Editions.

Chicago-viite (17. p.)

Visayas State College of Agriculture. ViSCA-GTZ Program on Applied Tropical Ecology ja Peter Widmann. A Guide to the Ecosystems of Palawan, Philippines. Singapore: Times Editions, 1998.

MLA-viite (9. p.)

Visayas State College of Agriculture. ViSCA-GTZ Program on Applied Tropical Ecology ja Peter Widmann. A Guide to the Ecosystems of Palawan, Philippines. Times Editions, 1998.