APA-viite (7. p.)

Pettingill, O. S. (1977). A guide to bird finding east of the Mississippi (2d ed.). Oxford University Press.

Chicago-viite (17. p.)

Pettingill, Olin Sewall. A Guide to Bird Finding East of the Mississippi. 2d ed. New York: Oxford University Press, 1977.

MLA-viite (9. p.)

Pettingill, Olin Sewall. A Guide to Bird Finding East of the Mississippi. 2d ed. Oxford University Press, 1977.