Cita APA (7a ed.)

Ducatez, S., & Lefebvre, L. (2014). Patterns of research effort in birds. Public Library of Science (PLoS).

Cita Chicago Style (17a ed.)

Ducatez, Simon, y Louis Lefebvre. Patterns of Research Effort in Birds. Public Library of Science (PLoS), 2014.

Cita MLA (8a ed.)

Ducatez, Simon, y Louis Lefebvre. Patterns of Research Effort in Birds. Public Library of Science (PLoS), 2014.