APA (7th ed.) Citation

Birney, D. S. (1969). Modern astronomy. Allyn and Bacon.

Chicago Style (17th ed.) Citation

Birney, D. Scott. Modern Astronomy. Boston: Allyn and Bacon, 1969.

MLA (9th ed.) Citation

Birney, D. Scott. Modern Astronomy. Allyn and Bacon, 1969.

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