Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.