Gaya APA

Chien, N, C., East, P, L. (2011). The Younger Siblings of Childbearing Adolescents: Parenting Influences on Their Academic and Social-Emotional Adjustment . New York: Springer Science+Business Media.

Gaya MLA

Chien, Nina, C.., East, Patricia, L.. "The Younger Siblings of Childbearing Adolescents: Parenting Influences on Their Academic and Social-Emotional Adjustment". New York: Springer Science+Business Media, 2011. e-journal.