APA (7th ed.) Citation

Levitt, I. M. (1974). Beyond the known universe: From dwarf stars to quasars. Viking Press.

Chicago Style (17th ed.) Citation

Levitt, Israel Monroe. Beyond the Known Universe: From Dwarf Stars to Quasars. New York: Viking Press, 1974.

MLA (9th ed.) Citation

Levitt, Israel Monroe. Beyond the Known Universe: From Dwarf Stars to Quasars. Viking Press, 1974.

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