Citazione Stile APA (7a Edizione)

Erwin, E. (1970). The Concept of Meaninglessness. Johns Hopkins Press.

Citazione stile Chigago Style (17a edizione)

Erwin, Edward. The Concept of Meaninglessness. Baltimore: Johns Hopkins Press, 1970.

Citatione MLA (9a ed.)

Erwin, Edward. The Concept of Meaninglessness. Johns Hopkins Press, 1970.