Gaya APA

Birds. (2008). [s.l.]: [s.n.].

Gaya Chicago

Birds. Ed.2Cet.3. [s.l.]: [s.n.], 2008. Text.

Gaya MLA

Birds. Ed.2Cet.3. [s.l.]: [s.n.], 2008. Text.

Gaya Turabian

Birds. [s.l.]: [s.n.], 2008. Print.