National Association of Public School Adult Educators. (1961). In-service training for teachers of adults. s.n.
Chicago-Zitierstil (17. Ausg.)National Association of Public School Adult Educators. In-service Training for Teachers of Adults. [Washington: s.n, 1961.
MLA-Zitierstil (9. Ausg.)National Association of Public School Adult Educators. In-service Training for Teachers of Adults. s.n, 1961.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.