APA (7th ed.) Citation

O'Brian, R. (1972). Machines. Time-Life Books.

Chicago Style (17th ed.) Citation

O'Brian, Robert. Machines. New York: Time-Life Books, 1972.

MLA (9th ed.) Citation

O'Brian, Robert. Machines. Time-Life Books, 1972.

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