APA (7th ed.) Citation

Huffer, C. M. (1967). An Introduction to astronomy. Holt, Rinehart and Winston.

Chicago Style (17th ed.) Citation

Huffer, Charles M. An Introduction to Astronomy. New York: Holt, Rinehart and Winston, 1967.

MLA (9th ed.) Citation

Huffer, Charles M. An Introduction to Astronomy. Holt, Rinehart and Winston, 1967.