APA

Levey D. J., Londoño G. A., Ungvari-Martin J., Hiersoux M. R., Jankowski J. E., Poulsen J. R., Stracey C. M. & Robinson S. K. (20090617). Urban mockingbirds quickly learn to identify individual humans. : Proceedings of the National Academy of Sciences of the United States of America.

Chicago

Levey Douglas J, Londoño Gustavo A, Ungvari-Martin Judit, Hiersoux Monique R, Jankowski Jill E, Poulsen John R, Stracey Christine M and Robinson Scott K. 20090617. Urban mockingbirds quickly learn to identify individual humans. : Proceedings of the National Academy of Sciences of the United States of America.

Harvard

Levey D. J., Londoño G. A., Ungvari-Martin J., Hiersoux M. R., Jankowski J. E., Poulsen J. R., Stracey C. M. and Robinson S. K. (20090617). Urban mockingbirds quickly learn to identify individual humans. : Proceedings of the National Academy of Sciences of the United States of America.

MLA

Levey Douglas J, Londoño Gustavo A, Ungvari-Martin Judit, Hiersoux Monique R, Jankowski Jill E, Poulsen John R, Stracey Christine M and Robinson Scott K. Urban mockingbirds quickly learn to identify individual humans. : Proceedings of the National Academy of Sciences of the United States of America. 20090617.