APA (7th ed.) Citation

Smithsonian Institution. Office of the Secretary & DeCandolle, C. (1919). Begoniaceae Centrali-Americanae et Ecuadorenses. [publisher not identified].

Chicago Style (17th ed.) Citation

Smithsonian Institution. Office of the Secretary and Casimir DeCandolle. Begoniaceae Centrali-Americanae Et Ecuadorenses. Washington, D.C.: [publisher not identified], 1919.

MLA (9th ed.) Citation

Smithsonian Institution. Office of the Secretary and Casimir DeCandolle. Begoniaceae Centrali-Americanae Et Ecuadorenses. [publisher not identified], 1919.