Cita APA (7a ed.)

King, A. C. (2001). Interventions to promote physical activity by older adults. [s.n.].

Cita Chicago Style (17a ed.)

King, Abby C. Interventions to Promote Physical Activity by Older Adults. [S.l.]: [s.n.], 2001.

Cita MLA (9a ed.)

King, Abby C. Interventions to Promote Physical Activity by Older Adults. [s.n.], 2001.