Lay-Dopyera, M., & Dopyera, J. (1987). Becoming a teacher of young children (3rd ed.). Random House.
Cita Chicago (17th ed.)Lay-Dopyera, Margaret, i John Dopyera. Becoming a Teacher of Young Children. 3rd ed. New York: Random House, 1987.
Cita MLA (9th ed.)Lay-Dopyera, Margaret, i John Dopyera. Becoming a Teacher of Young Children. 3rd ed. Random House, 1987.
Atenció: Aquestes cites poden no estar 100% correctes.