Παραπομπή APA

Lewis, B., Williams, D., Dunsiger, S., Sciamanna, C., Whiteley, J., Napolitano, M., . . . Marcus, B. (2008). User Attitudes towards Physical Activity Websites in a Randomized Controlled Trial.

Παραπομπή Chicago Style

Lewis, Beth, et al. User Attitudes Towards Physical Activity Websites in a Randomized Controlled Trial. 2008.

Παραπομπή MLA

Lewis, Beth, et al. User Attitudes Towards Physical Activity Websites in a Randomized Controlled Trial. 2008.

Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.