APA-Zitierstil (7. Ausg.)

Huddle, D. (1999). The story of a million years. Houghton Mifflin.

Chicago-Zitierstil (17. Ausg.)

Huddle, David. The Story of a Million Years. Boston [u.a.]: Houghton Mifflin, 1999.

MLA-Zitierstil (9. Ausg.)

Huddle, David. The Story of a Million Years. Houghton Mifflin, 1999.