APA (7th ed.) Zitazioa

o Parry, J. (1975). Outlook: Science at work. Penguin.

Chicago Style (17th ed.) Zitazioa

o Parry, John. Outlook: Science at Work. Harmondsworth: Penguin, 1975.

MLA (9th ed.) Zitazioa

o Parry, John. Outlook: Science at Work. Penguin, 1975.