Παραπομπή APA

Bair, E., Brownstein, N. C., Ohrbach, R., Greenspan, J. D., Dubner, R., Fillingim, R. B., . . . Slade, G. D. (2013). Study Protocol, Sample Characteristics, and Loss to Follow-Up: The OPPERA Prospective Cohort Study.

Παραπομπή Chicago Style

Bair, Eric, et al. Study Protocol, Sample Characteristics, and Loss to Follow-Up: The OPPERA Prospective Cohort Study. 2013.

Παραπομπή MLA

Bair, Eric, et al. Study Protocol, Sample Characteristics, and Loss to Follow-Up: The OPPERA Prospective Cohort Study. 2013.

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