Cita APA (7a ed.)

National Education Association of the United States. (1976). Values, concepts and techniques. National Education Association.

Cita Chicago Style (17a ed.)

National Education Association of the United States. Values, Concepts and Techniques. Washington, D.C: National Education Association, 1976.

Cita MLA (9a ed.)

National Education Association of the United States. Values, Concepts and Techniques. National Education Association, 1976.