Adolescents' sports and exercise environments in a U.S. time use survey

MLA

Frank M. Perna, et al. “Adolescents’ Sports and Exercise Environments in a U.S. Time Use Survey.” American Journal of Preventive Medicine, vol. 39, no. 2, Oct. 2009. EBSCOhost, widgets.ebscohost.com/prod/customlink/proxify/proxify.php?count=1&encode=0&proxy=&find_1=&replace_1=&target=https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&scope=site&db=edsair&AN=edsair.doi.dedup.....50f19eb3e61391c72c449d357aac4351&authtype=sso&custid=ns315887.

APA

Frank M. Perna, Rachel Ballard-Barbash, Barry I. Graubard, Audie A. Atienza, Genevieve F. Dunton, & David Berrigan. (2009). Adolescents’ sports and exercise environments in a U.S. time use survey. American Journal of Preventive Medicine, 39(2).

Chicago

Frank M. Perna, Rachel Ballard-Barbash, Barry I. Graubard, Audie A. Atienza, Genevieve F. Dunton, and David Berrigan. 2009. “Adolescents’ Sports and Exercise Environments in a U.S. Time Use Survey.” American Journal of Preventive Medicine 39 (2). http://widgets.ebscohost.com/prod/customlink/proxify/proxify.php?count=1&encode=0&proxy=&find_1=&replace_1=&target=https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&scope=site&db=edsair&AN=edsair.doi.dedup.....50f19eb3e61391c72c449d357aac4351&authtype=sso&custid=ns315887.