APA aipamena

Okon, E. (2013). The World of Bats. Obafemi Awolowo University Press.

Chicago Style aipamena

Okon, Eyo.E. The World of Bats. Obafemi Awolowo University Press, 2013.

MLA aipamena

Okon, Eyo.E. The World of Bats. Obafemi Awolowo University Press, 2013.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.