APA citiranje

Heil, S. H., Herrmann, E. S., Badger, G. J., Solomon, L. J., Bernstein, I. M., & Higgins, S. T. (2014). Examining the Timing of Changes in Cigarette Smoking Upon Learning of Pregnancy. Prev Med.

Citação norma Chicago

Heil, Sarah H., Evan S. Herrmann, Gary J. Badger, Laura J. Solomon, Ira M. Bernstein, and Stephen T. Higgins. "Examining the Timing of Changes in Cigarette Smoking Upon Learning of Pregnancy." Prev Med 2014.

MLA citiranje

Heil, Sarah H., et al. "Examining the Timing of Changes in Cigarette Smoking Upon Learning of Pregnancy." Prev Med 2014.