APA (7th ed.) Citation

Guest, J., & Greeley, R. (1977). Geology on the moon. Wykeham Publications.

Chicago Style (17th ed.) Citation

Guest, John, and Ronald Greeley. Geology on the Moon. London: Wykeham Publications, 1977.

MLA (9th ed.) Citation

Guest, John, and Ronald Greeley. Geology on the Moon. Wykeham Publications, 1977.