Cita APA (7a ed.)

Sallis, J. F. (1986). Predictors of adoption and maintenance of physical activity in a community sample. [s.n.].

Cita Chicago Style (17a ed.)

Sallis, James F. Predictors of Adoption and Maintenance of Physical Activity in a Community Sample. [S.l.]: [s.n.], 1986.

Cita MLA (9a ed.)

Sallis, James F. Predictors of Adoption and Maintenance of Physical Activity in a Community Sample. [s.n.], 1986.