APA aipamena

Klakk, H., Chinapaw, M., Heidemann, M., Andersen, L. B., & Wedderkopp, N. (2013). Effect of four additional physical education lessons on body composition in children aged 8–13 years – a prospective study during two school years. BioMed Central.

Chicago Style aipamena

Klakk, Heidi, Mai Chinapaw, Malene Heidemann, Lars Bo Andersen, and Niels Wedderkopp. Effect of Four Additional Physical Education Lessons On Body Composition in Children Aged 8–13 years – a Prospective Study During Two School Years. BioMed Central, 2013.

MLA aipamena

Klakk, Heidi, et al. Effect of Four Additional Physical Education Lessons On Body Composition in Children Aged 8–13 years – a Prospective Study During Two School Years. BioMed Central, 2013.