APA (7th ed.) Citation

Oster, L. (1973). Modern astronomy. Holden-Day.

Chicago Style (17th ed.) Citation

Oster, Ludwig. Modern Astronomy. Holden-Day, 1973.

MLA (8th ed.) Citation

Oster, Ludwig. Modern Astronomy. Holden-Day, 1973.

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