APA-viite (7. p.)

Shapp, M., & Shapp, C. (1961). Let's find out what's in the sky. Franklin Watts.

Chicago-viite (17. p.)

Shapp, Martha, ja C. Shapp. Let's Find Out What's in the Sky. New York: Franklin Watts, 1961.

MLA-viite (9. p.)

Shapp, Martha, ja C. Shapp. Let's Find Out What's in the Sky. Franklin Watts, 1961.