APA citiranje

Greenberg, R., Cadena, V., Danner, R. M., & Tattersall, G. (2012). Heat Loss May Explain Bill Size Differences between Birds Occupying Different Habitats. Public Library of Science.

Citação norma Chicago

Greenberg, Russell, Viviana Cadena, Raymond M. Danner, and Glenn Tattersall. Heat Loss May Explain Bill Size Differences between Birds Occupying Different Habitats. Public Library of Science, 2012.

MLA citiranje

Greenberg, Russell, Viviana Cadena, Raymond M. Danner, and Glenn Tattersall. Heat Loss May Explain Bill Size Differences between Birds Occupying Different Habitats. Public Library of Science, 2012.