APA citiranje

Mack, D. J., Erwin, L., & Fulton, J. D. (1993). Chronic constipation in elderly patients.

Citação norma Chicago

Mack, D J., L. Erwin, and J D. Fulton. Chronic Constipation in Elderly Patients. 1993.

MLA citiranje

Mack, D J., L. Erwin, and J D. Fulton. Chronic Constipation in Elderly Patients. 1993.