Cita APA (7a ed.)

Petruzzello, S. J. (1991). A meta-analysis on the anxiety-reducing effects of acute and chronic exercise. [s.n.].

Cita Chicago Style (17a ed.)

Petruzzello, Steven J. A Meta-analysis on the Anxiety-reducing Effects of Acute and Chronic Exercise. [S.l.]: [s.n.], 1991.

Cita MLA (9a ed.)

Petruzzello, Steven J. A Meta-analysis on the Anxiety-reducing Effects of Acute and Chronic Exercise. [s.n.], 1991.