APA aipamena

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

Chicago Style aipamena

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

MLA aipamena

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

Kontuz: berrikusi erreferentzia hauek erabili aurretik.