APA (7th ed.) Citation

Scientific American. (1975). New frontiers in astronomy (1a ed.). Freeman And Company.

Chicago Style (17th ed.) Citation

Scientific American. New Frontiers in Astronomy. 1a ed. San Francisco: Freeman And Company, 1975.

MLA (9th ed.) Citation

Scientific American. New Frontiers in Astronomy. 1a ed. Freeman And Company, 1975.