Cita APA (7a ed.)

Rickel, A. U. (1989). Teen pregnancy and parenting. Hemisphere.

Cita Chicago Style (17a ed.)

Rickel, Annette U. Teen Pregnancy and Parenting. New York [u.a.]: Hemisphere, 1989.

Cita MLA (9a ed.)

Rickel, Annette U. Teen Pregnancy and Parenting. Hemisphere, 1989.