APA (7th ed.) Citation

Parker, T. (1966). The unknown citizen / by Tony Parker. Penguin.

Chicago Style (17th ed.) Citation

Parker, Tony. The Unknown Citizen / by Tony Parker. Penguin, 1966.

MLA (9th ed.) Citation

Parker, Tony. The Unknown Citizen / by Tony Parker. Penguin, 1966.

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