Cita APA

Mace, G. M., Akcakaya, H. R., Collar, N. J., Gaston, K. J., Hilton Taylor, C., Leader Williams, N., . . . Stuart, S. N. Quantification of extinction risk: IUCN´s system for classifying threatened species.

Citación estilo Chicago

Mace, Georgina M., H. Resit Akcakaya, Nigel J. Collar, Kevin J. Gaston, Craig Hilton Taylor, Nigel Leader Williams, E. J. Milner Gulland, y Simon N. Stuart. Quantification of Extinction Risk: IUCN´s System for Classifying Threatened Species.

Cita MLA

Mace, Georgina M., et al. Quantification of Extinction Risk: IUCN´s System for Classifying Threatened Species.