Gaya APA

Matthews, G. et al (2009). Personality traits : Gerald Matthews, Ian J. Deary and Martha C. Whiteman (cet. 1). New York: Cambridge.

Gaya MLA

Matthews, Gerald. et al. "Personality traits : Gerald Matthews, Ian J. Deary and Martha C. Whiteman". cet. 1 New York: Cambridge, 2009. Buku.