APA (7e ed.) Bronvermelding
Smalley, G., Paul, R. S., & Smalley, M. (2007). The DNA of relationships. Tyndale house publishers.
Chicago (17e ed.) Bronvermelding
Smalley, Gary, Robert S. Paul, en Michael Smalley. The DNA of Relationships. Illinois: Tyndale house publishers, 2007.
MLA (9e ed.) Bronvermelding
Smalley, Gary, et al. The DNA of Relationships. Tyndale house publishers, 2007.
Let op: Deze citaties zijn niet altijd 100% accuraat.