APA (7e ed.) Bronvermelding

Armstrong, M., Cairns, B., Green, J., Reeves, G., Beral, V., & Collaborators, T. M. W. S. (2011). Reported frequency of physical activity in a large epidemiological study: Relationship to specific activities and repeatability over time. BioMed Central.

Chicago (17e ed.) Bronvermelding

Armstrong, M., B. Cairns, J. Green, G. Reeves, V. Beral, en The Million Women Study Collaborators. Reported Frequency of Physical Activity in a Large Epidemiological Study: Relationship to Specific Activities and Repeatability over Time. BioMed Central, 2011.

MLA (9e ed.) Bronvermelding

Armstrong, M., et al. Reported Frequency of Physical Activity in a Large Epidemiological Study: Relationship to Specific Activities and Repeatability over Time. BioMed Central, 2011.