Beja, E. L., Jr. (2017). The U-shaped relationship between happiness and age: Evidence using world values survey data. Archīum Ateneo.
استشهاد بنمط شيكاغوBeja, Edsel L., Jr. The U-shaped Relationship between Happiness and Age: Evidence Using World Values Survey Data. Archīum Ateneo, 2017.
MLA استشهادBeja, Edsel L., Jr. The U-shaped Relationship between Happiness and Age: Evidence Using World Values Survey Data. Archīum Ateneo, 2017.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.