Cita APA (7th ed.)
Gerkin, C. V. (1979). Crisis experience in modern life. Abingdon.
Cita Chicago (17th ed.)
Gerkin, Charles V. Crisis Experience in Modern Life. Nashville: Abingdon, 1979.
Cita MLA (9th ed.)
Gerkin, Charles V. Crisis Experience in Modern Life. Abingdon, 1979.
Atenció: Aquestes cites poden no estar 100% correctes.