Παραπομπή σε μορφή APA (7η εκδ.)

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.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Armstrong, M., B. Cairns, J. Green, G. Reeves, V. Beral, και 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.

Παραπομπή σε μορφή MLA (9th εκδ.)

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.