APA (7th ed.) Citation

Motz, L., & Duveen, A. (1977). Essentials of astronomy (2. ed.). Columbia Univ. Pr.

Chicago Style (17th ed.) Citation

Motz, Lloyd, and Anneta Duveen. Essentials of Astronomy. 2. ed. New York u.a: Columbia Univ. Pr, 1977.

MLA (9th ed.) Citation

Motz, Lloyd, and Anneta Duveen. Essentials of Astronomy. 2. ed. Columbia Univ. Pr, 1977.

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