Hennings, D. G. (1974). Smiles, nods, and pauses: Activities to enrich children's communication skills. Citation Press.
Cita Chicago (17th ed.)Hennings, Dorothy Grant. Smiles, Nods, and Pauses: Activities to Enrich Children's Communication Skills. New York: Citation Press, 1974.
Cita MLA (9th ed.)Hennings, Dorothy Grant. Smiles, Nods, and Pauses: Activities to Enrich Children's Communication Skills. Citation Press, 1974.
Atenció: Aquestes cites poden no estar 100% correctes.