Cita APA (7a ed.)

Marcellini, F. (2002). Health perception of elderly people: The results of a longitudinal study. [s.n.].

Cita Chicago Style (17a ed.)

Marcellini, F. Health Perception of Elderly People: The Results of a Longitudinal Study. [S.l.]: [s.n.], 2002.

Cita MLA (9a ed.)

Marcellini, F. Health Perception of Elderly People: The Results of a Longitudinal Study. [s.n.], 2002.