APA aipamena

Caccone, A., Gibbs, J. P., Ketmaier, V., Suatoni, E., & Powell, J. R. (1999). Origin and evolutionary relationships of giant Galápagos tortoises. The National Academy of Sciences.

Chicago Style aipamena

Caccone, Adalgisa, James P. Gibbs, Valerio Ketmaier, Elizabeth Suatoni, and Jeffrey R. Powell. Origin and Evolutionary Relationships of Giant Galápagos Tortoises. The National Academy of Sciences, 1999.

MLA aipamena

Caccone, Adalgisa, et al. Origin and Evolutionary Relationships of Giant Galápagos Tortoises. The National Academy of Sciences, 1999.