Ross, J. E. (1920). What is love. Paulist Press.
Chicago Style aipamenaRoss, J. Elliot. What Is Love. New York: Paulist Press, 1920.
MLA aipamenaRoss, J. Elliot. What Is Love. Paulist Press, 1920.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.