Cita APA (7th ed.)

Flavell, J. H. (1985). Cognitive development (2nd.ed.). Prentice - Hall.

Cita Chicago (17th ed.)

Flavell, John H. Cognitive Development. 2nd.ed. New Jersey: Prentice - Hall, 1985.

Cita MLA (9th ed.)

Flavell, John H. Cognitive Development. 2nd.ed. Prentice - Hall, 1985.