APA ציטוט

Mollenkopf, H., & Walker, A. (2020). Quality of Life in Old Age. Springer Netherlands.

Trích dẫn kiểu Chicago

Mollenkopf, Heidrun, và Alan Walker. Quality of Life in Old Age. Springer Netherlands, 2020.

ציטוט MLA

Mollenkopf, Heidrun, và Alan Walker. Quality of Life in Old Age. Springer Netherlands, 2020.