APA aipamena

Dunton, G. F., & Schneider, M. (2006). Perceived Barriers to Walking for Physical Activity. Centers for Disease Control and Prevention.

Chicago Style aipamena

Dunton, Genevieve F., and Margaret Schneider. Perceived Barriers to Walking for Physical Activity. Centers for Disease Control and Prevention, 2006.

MLA aipamena

Dunton, Genevieve F., and Margaret Schneider. Perceived Barriers to Walking for Physical Activity. Centers for Disease Control and Prevention, 2006.