APA (7th ed.) Citation

(1970). Frontiers in astronomy: Readings from Scientific American. Freeman.

Chicago Style (17th ed.) Citation

Frontiers in Astronomy: Readings from Scientific American. San Francisco: Freeman, 1970.

MLA (9th ed.) Citation

Frontiers in Astronomy: Readings from Scientific American. Freeman, 1970.

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