Wilcove, D. S., & Wikelski, M. (2008). Going, going, gone: Is animal migration disappearing. Public Library of Science (PLoS).
Cita Chicago Style (17a ed.)Wilcove, David S., y Martin Wikelski. Going, Going, Gone: Is Animal Migration Disappearing. Public Library of Science (PLoS), 2008.
Cita MLA (8a ed.)Wilcove, David S., y Martin Wikelski. Going, Going, Gone: Is Animal Migration Disappearing. Public Library of Science (PLoS), 2008.
Precaución: Estas citas no son 100% exactas.