Gaya APA

Risk, S, W. (2015). Mary Patrice Erdmans and Timothy Black: On Becoming a Teen Mom: Life Before Pregnancy (Adolescent Res Rev (2016) 1:191–194). USA: Springer.

Gaya MLA

Risk, Stephen, William. "Mary Patrice Erdmans and Timothy Black: On Becoming a Teen Mom: Life Before Pregnancy". Adolescent Res Rev (2016) 1:191–194 USA: Springer, 2015. Text.