Cita APA (7a ed.)

Earle, P. T., Rogers, C. S., & Wall, J. G. (1982). Child development: An observation manual. Prentice-Hall.

Cita Chicago Style (17a ed.)

Earle, Patty T., Cosby S. Rogers, y Jean G. Wall. Child Development: An Observation Manual. Englewood Cliffs, N.J: Prentice-Hall, 1982.

Cita MLA (9a ed.)

Earle, Patty T., et al. Child Development: An Observation Manual. Prentice-Hall, 1982.