Παραπομπή σε μορφή APA (7η εκδ.)

Heyer, W. R. (1994). Measuring and monitoring biological diversity: Standard methods for amphibians. Smithsonian Institution Press.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Heyer, W. Ronald. Measuring and Monitoring Biological Diversity: Standard Methods for Amphibians. Washington: Smithsonian Institution Press, 1994.

Παραπομπή σε μορφή MLA (9th εκδ.)

Heyer, W. Ronald. Measuring and Monitoring Biological Diversity: Standard Methods for Amphibians. Smithsonian Institution Press, 1994.