National Forum Foundation. (1959). Teacher's guide for being teen-agers. National Forum.
Cita Chicago (17th ed.)National Forum Foundation. Teacher's Guide for Being Teen-agers. Chicago: National Forum, 1959.
Cita MLA (9th ed.)National Forum Foundation. Teacher's Guide for Being Teen-agers. National Forum, 1959.
Atenció: Aquestes cites poden no estar 100% correctes.