Cita APA (7th ed.)

Flennert, M., König, H., & Hajek, A. (2019). The association between voluntary work and health care use among older adults in Germany. BMC.

Cita Chicago (17th ed.)

Flennert, Maike, Hans-Helmut König, i André Hajek. The Association Between Voluntary Work and Health Care Use Among Older Adults in Germany. BMC, 2019.

Cita MLA (9th ed.)

Flennert, Maike, et al. The Association Between Voluntary Work and Health Care Use Among Older Adults in Germany. BMC, 2019.