APA (7th ed.) Zitazioa

Esser, R. (2008). Vitality: A psychiatrist's answer to life's problems. Algora Pub..

Chicago Style (17th ed.) Zitazioa

Esser, Richard. Vitality: A Psychiatrist's Answer to Life's Problems. New York: Algora Pub., 2008.

MLA (9th ed.) Zitazioa

Esser, Richard. Vitality: A Psychiatrist's Answer to Life's Problems. Algora Pub., 2008.