Παραπομπή APA

Warren, S., & Warren, K. G. (2001). Multiple sclerosis. World Health Organisation.

Παραπομπή Chicago Style

Warren, Sharon, και Kenneth G. Warren. Multiple Sclerosis. Geneva: World Health Organisation, 2001.

Παραπομπή MLA

Warren, Sharon, και Kenneth G. Warren. Multiple Sclerosis. World Health Organisation, 2001.