Não informado. (2004). Hygienic Laboratory bulletin. Hygienic Laboratory.
Style de citation Chicago (17e éd.)Não informado. Hygienic Laboratory Bulletin. Washington: Hygienic Laboratory, 2004.
Style de citation MLA (8e éd.)Não informado. Hygienic Laboratory Bulletin. Hygienic Laboratory, 2004.
Attention : ces citations peuvent ne pas être correctes à 100%.