Παραπομπή APA

Ruchlis, H., & Hirsh, A. (1961). The wonder of heat energy: A picture story of the vital part heat plays in our world. Harper.

Παραπομπή Chicago Style

Ruchlis, Hyman, και Alice Hirsh. The Wonder of Heat Energy: A Picture Story of the Vital Part Heat Plays in Our World. New York: Harper, 1961.

Παραπομπή MLA

Ruchlis, Hyman, και Alice Hirsh. The Wonder of Heat Energy: A Picture Story of the Vital Part Heat Plays in Our World. Harper, 1961.