Gaya APA

Tough, P., Lotfy, M. (2012). How children succeed : grit, curiosity, and the hidden power of character (First mariner books edition). New York: Mariner.

Gaya MLA

Tough, Paul., Lotfy, Melisa. "How children succeed : grit, curiosity, and the hidden power of character". First mariner books edition New York: Mariner, 2012. Text.