Cita APA (7a ed.)

Smart, M. S., & Smart, R. C. (1978). School-age children: Development and relationships (2nd ed.). Macmillan.

Cita Chicago Style (17a ed.)

Smart, Mollie Stevens, y Russell C. Smart. School-age Children: Development and Relationships. 2nd ed. New York: Macmillan, 1978.

Cita MLA (9a ed.)

Smart, Mollie Stevens, y Russell C. Smart. School-age Children: Development and Relationships. 2nd ed. Macmillan, 1978.