APA (7th ed.) Zitazioa
De Velde, T. (1930). Ideal marriage: Its psychology and techniques. Random House Publishers.
Chicago Style (17th ed.) Zitazioa
De Velde, T.H. Ideal Marriage: Its Psychology and Techniques. New York: Random House Publishers, 1930.
MLA (9th ed.) Zitazioa
De Velde, T.H. Ideal Marriage: Its Psychology and Techniques. Random House Publishers, 1930.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.