APA (7e ed.) Bronvermelding

Armstrong, M., Spencer, E., Cairns, B., Banks, E., Pirie, K., Green, J., . . . Beral, V. (2011). Body mass index and physical activity in relation to the incidence of hip fracture in postmenopausal women.

Chicago (17e ed.) Bronvermelding

Armstrong, M., E. Spencer, B. Cairns, E. Banks, K. Pirie, J. Green, F. Wright, G. Reeves, en V. Beral. Body Mass Index and Physical Activity in Relation to the Incidence of Hip Fracture in Postmenopausal Women. 2011.

MLA (9e ed.) Bronvermelding

Armstrong, M., et al. Body Mass Index and Physical Activity in Relation to the Incidence of Hip Fracture in Postmenopausal Women. 2011.