Παραπομπή σε μορφή APA (7η εκδ.)

Tuxill, J. D., & Peterson, J. A. (1998). Losing strands in the web of life: Vertebrate declines and the conservation of biological diversity. Worldwatch Institute.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Tuxill, John D., και Jane A. Peterson. Losing Strands in the Web of Life: Vertebrate Declines and the Conservation of Biological Diversity. Washington, DC: Worldwatch Institute, 1998.

Παραπομπή σε μορφή MLA (8th εκδ.)

Tuxill, John D., και Jane A. Peterson. Losing Strands in the Web of Life: Vertebrate Declines and the Conservation of Biological Diversity. Worldwatch Institute, 1998.