Citazione Stile APA (7a Edizione)

Hennings, D. G. (1974). Smiles, nods, and pauses: Activities to enrich children's communication skills. Citation Press.

Citazione stile Chigago Style (17a edizione)

Hennings, Dorothy Grant. Smiles, Nods, and Pauses: Activities to Enrich Children's Communication Skills. New York: Citation Press, 1974.

Citatione MLA (9a ed.)

Hennings, Dorothy Grant. Smiles, Nods, and Pauses: Activities to Enrich Children's Communication Skills. Citation Press, 1974.