Cita APA

Polk, D., Geng, M., Levy, S., Koerber, A., & Flay, B. (2014). Frequency of daily tooth brushing: Predictors of change in 9- to 11-year old US children.

Chicago Style Citation

Polk, D.E., M. Geng, S. Levy, A. Koerber, i B.R Flay. Frequency of Daily Tooth Brushing: Predictors of Change in 9- to 11-year Old US Children. 2014.

Cita MLA

Polk, D.E., et al. Frequency of Daily Tooth Brushing: Predictors of Change in 9- to 11-year Old US Children. 2014.