Friedman, E. M., Park, S. S., & Wiemers, E. E. (2017). New Estimates of the Sandwich Generation in the 2013 Panel Study of Income Dynamics. Gerontologist.
استشهاد بنمط شيكاغوFriedman, Esther M., Sung S. Park, و Emily E. Wiemers. "New Estimates of the Sandwich Generation in the 2013 Panel Study of Income Dynamics." Gerontologist 2017.
MLA استشهادFriedman, Esther M., Sung S. Park, و Emily E. Wiemers. "New Estimates of the Sandwich Generation in the 2013 Panel Study of Income Dynamics." Gerontologist 2017.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.