Cita APA

Sears, W., Sears, M., Sears, R., & Sears, J. (2006). The Baby Book. PT. Serambi Ibnu Sumitra.

Citación estilo Chicago

Sears, Williams, Martha Sears, Robert Sears, and James Sears. The Baby Book. PT. Serambi Ibnu Sumitra, 2006.

Cita MLA

Sears, Williams, et al. The Baby Book. PT. Serambi Ibnu Sumitra, 2006.