APA (7th ed.) Citation

Ahlbom, A., Modig, K., & Rau, R. Life expectancy: What does it measure? BMJ Publishing Group.

Chicago Style (17th ed.) Citation

Ahlbom, Anders, Karin Modig, and Roland Rau. Life Expectancy: What Does It Measure? BMJ Publishing Group.

MLA (9th ed.) Citation

Ahlbom, Anders, et al. Life Expectancy: What Does It Measure? BMJ Publishing Group.