APA način citiranja

Whitfield, K. E., King, G., Moller, S., Edwards, C. L., Nelson, T., & Vandenbergh, D. (2007). Concordance rates for smoking among African-American twins. National Medical Association.

Čikaški stil citiranja

Whitfield, Keith E., Gary King, Stephanie Moller, Christopher L. Edwards, Tracy Nelson, i David Vandenbergh. Concordance Rates for Smoking Among African-American Twins. National Medical Association, 2007.

MLA način citiranja

Whitfield, Keith E., et al. Concordance Rates for Smoking Among African-American Twins. National Medical Association, 2007.