Παραπομπή APA

Single, E., & ...[et al.]. (2003). International guidelines for estimating the costs of substance abuse. World Health Organisation.

Παραπομπή Chicago Style

Single, Eric, και ...[et al.]. International Guidelines for Estimating the Costs of Substance Abuse. Geneva: World Health Organisation, 2003.

Παραπομπή MLA

Single, Eric, και ...[et al.]. International Guidelines for Estimating the Costs of Substance Abuse. World Health Organisation, 2003.