Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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