APA (7th ed.) Citation

Heppenheimer, T. A. (1979). Toward distant suns. Stackpole Books.

Chicago Style (17th ed.) Citation

Heppenheimer, T. A. Toward Distant Suns. Harrisburg, Pa.: Stackpole Books, 1979.

MLA (9th ed.) Citation

Heppenheimer, T. A. Toward Distant Suns. Stackpole Books, 1979.

Warning: These citations may not always be 100% accurate.