APA (7th ed.) Citation

MacGowan, R. A., & Ordway, F. I. (1966). Intelligence in the universe (10. print.). Prentice-Hall.

Chicago Style (17th ed.) Citation

MacGowan, Roger A., and Frederick I. Ordway. Intelligence in the Universe. 10. print. Englewood Cliffs, NJ: Prentice-Hall, 1966.

MLA (9th ed.) Citation

MacGowan, Roger A., and Frederick I. Ordway. Intelligence in the Universe. 10. print. Prentice-Hall, 1966.