Cita APA (7a 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 Style (17a ed.)

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

Cita MLA (9a ed.)

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