APA (7th ed.) Citation
Groffen, D., & ET AL. (2012). Personality and health as predictors of income decrease in old age: Findings from the longitudinal SMILE study.
Chicago Style (17th ed.) Citation
Groffen, D.A.I, and ET AL. Personality and Health as Predictors of Income Decrease in Old Age: Findings from the Longitudinal SMILE Study. 2012.
MLA (9th ed.) Citation
Groffen, D.A.I, and ET AL. Personality and Health as Predictors of Income Decrease in Old Age: Findings from the Longitudinal SMILE Study. 2012.
Warning: These citations may not always be 100% accurate.