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

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

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