APA

Wilson R. P., Vargas F. H., Steinfurth A., Riordan P., Coudert Y. R. & Macdonald D. W. (2008). What grounds some birds for life?. [S.d.]: [s.d.].

Chicago

Wilson Rory P, Vargas F Hernán, Steinfurth Antje, Riordan Philip, Coudert Yan Ropert and Macdonald David W. 2008. What grounds some birds for life?. [S.d.]: [s.d.].

Harvard

Wilson R. P., Vargas F. H., Steinfurth A., Riordan P., Coudert Y. R. and Macdonald D. W. (2008). What grounds some birds for life?. [S.d.]: [s.d.].

MLA

Wilson Rory P, Vargas F Hernán, Steinfurth Antje, Riordan Philip, Coudert Yan Ropert and Macdonald David W. What grounds some birds for life?. [S.d.]: [s.d.]. 2008.