Cita APA (7a ed.)

Wong, J., & Checkland, D. (1999). Teen Pregnancy and Parenting: Social and Ethical Issues. University of Toronto Press.

Cita Chicago Style (17a ed.)

Wong, James, y David Checkland. Teen Pregnancy and Parenting: Social and Ethical Issues. Buffalo: University of Toronto Press, 1999.

Cita MLA (8a ed.)

Wong, James, y David Checkland. Teen Pregnancy and Parenting: Social and Ethical Issues. University of Toronto Press, 1999.