Cita APA (7th ed.)

Lefrançois, G. R. (1977). Of children: An introduction to child development (2nd ed.). Wadsworth Pub. Co..

Cita Chicago (17th ed.)

Lefrançois, Guy R. Of Children: An Introduction to Child Development. 2nd ed. Belmont, Calif.: Wadsworth Pub. Co., 1977.

Cita MLA (8th ed.)

Lefrançois, Guy R. Of Children: An Introduction to Child Development. 2nd ed. Wadsworth Pub. Co., 1977.