APA (7th ed.) Citation

O'Brien, R. j., & Time-Life Books. (1980). Machines. Time-Life Books.

Chicago Style (17th ed.) Citation

O'Brien, Robert journalist, and Time-Life Books. Machines. Hongkong: Time-Life Books, 1980.

MLA (9th ed.) Citation

O'Brien, Robert journalist, and Time-Life Books. Machines. Time-Life Books, 1980.