Citazione Stile APA (7a Edizione)

Macquarrie, J. (1973). Existentialism: An introduction, guide and assessment. Penguin.

Citazione stile Chigago Style (17a edizione)

Macquarrie, John. Existentialism: An Introduction, Guide and Assessment. London: Penguin, 1973.

Citatione MLA (9a ed.)

Macquarrie, John. Existentialism: An Introduction, Guide and Assessment. Penguin, 1973.