Dyfyniad APA

American Cancer Society, Lenhard, R. E., Osteen, R. T., & Gansler, T. S. (2001). Clinical oncology. American Cancer Society.

Dyfyniad Arddull Chicago

American Cancer Society, R. E. Lenhard, Robert T. Osteen, and Ted S. Gansler. Clinical Oncology. Atlanta, GA: American Cancer Society, 2001.

Dyfyniad MLA

American Cancer Society, et al. Clinical Oncology. American Cancer Society, 2001.

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