Παραπομπή σε μορφή APA (7η εκδ.)

Leland, J. (2005). Aliens in the backyard: Plant and animal imports into America. University of South Carolina Press.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Leland, John. Aliens in the Backyard: Plant and Animal Imports into America. Columbia, SC: University of South Carolina Press, 2005.

Παραπομπή σε μορφή MLA (9th εκδ.)

Leland, John. Aliens in the Backyard: Plant and Animal Imports into America. University of South Carolina Press, 2005.