Gaya APA

Vincent, P. (2013). The Power Of Positive Thinking For Young People ( Kekuatan Berpikir Positif bagi Remaja ) . tangsel: pamulang.

Gaya MLA

Vincent, Peale,Norman. "The Power Of Positive Thinking For Young People ( Kekuatan Berpikir Positif bagi Remaja )". tangsel: pamulang, 2013. Text.