Dyfyniad APA

Berrington de Gonzalez, A., Sweetland, S., & Spencer, E. (2003). A meta-analysis of obesity and the risk of pancreatic cancer.

Dyfyniad Arddull Chicago

Berrington de Gonzalez, A., S. Sweetland, and E. Spencer. A Meta-analysis of Obesity and the Risk of Pancreatic Cancer. 2003.

Dyfyniad MLA

Berrington de Gonzalez, A., et al. A Meta-analysis of Obesity and the Risk of Pancreatic Cancer. 2003.

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