Cita APA

Lewallen, S., Geneau, R., Mahande, M., Msangi, J., Nyaupumbwe, S., & Kitumba, R. (2006). Willingness to pay for cataract surgery in two regions of Tanzania. BMJ Group.

Chicago Style Citation

Lewallen, S., R. Geneau, M. Mahande, J. Msangi, S. Nyaupumbwe, i R. Kitumba. Willingness to Pay for Cataract Surgery in Two Regions of Tanzania. BMJ Group, 2006.

Cita MLA

Lewallen, S., et al. Willingness to Pay for Cataract Surgery in Two Regions of Tanzania. BMJ Group, 2006.