Gaya APA

Guest, A, M. (2007). Taking Sides : Clashing Views in Lifespan Development / Andrew M Guest (Ed.1). USA: Mc Graw Hill.

Gaya MLA

Guest, Andrew, M. "Taking Sides : Clashing Views in Lifespan Development / Andrew M Guest". Ed.1 USA: Mc Graw Hill, 2007. Buku.