APA (7e ed.) Bronvermelding

Não informado. (1890). Contributions from the United States National Herbarium. Smithsonian Institution.

Chicago (17e ed.) Bronvermelding

Não informado. Contributions from the United States National Herbarium. Washington: Smithsonian Institution, 1890.

MLA (8e ed.) Bronvermelding

Não informado. Contributions from the United States National Herbarium. Smithsonian Institution, 1890.

Let op: Deze citaties zijn niet altijd 100% accuraat.