Dyfyniad APA

Rothman, K. J., Greenland, S., & Lash, T. L. (2008). Modern epidemiology (3rd ed., thoroughly rev. and updated.). Wolters Kluwer Health/Lippincott Williams & Wilkins.

Dyfyniad Arddull Chicago

Rothman, Kenneth J., Sander Greenland, and Timothy L. Lash. Modern Epidemiology. 3rd ed., thoroughly rev. and updated. Philadelphia: Wolters Kluwer Health/Lippincott Williams & Wilkins, 2008.

Dyfyniad MLA

Rothman, Kenneth J., et al. Modern Epidemiology. 3rd ed., thoroughly rev. and updated. Wolters Kluwer Health/Lippincott Williams & Wilkins, 2008.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.