Παραπομπή σε μορφή APA (7η εκδ.)

Foster, C., Brennan, G., Matthews, A., McAdam, C., Fitzsimons, C., & Mutrie, N. (2011). Recruiting participants to walking intervention studies: A systematic review. BioMed Central.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Foster, C., G. Brennan, A. Matthews, C. McAdam, C. Fitzsimons, και N. Mutrie. Recruiting Participants to Walking Intervention Studies: A Systematic Review. BioMed Central, 2011.

Παραπομπή σε μορφή MLA (9th εκδ.)

Foster, C., et al. Recruiting Participants to Walking Intervention Studies: A Systematic Review. BioMed Central, 2011.