APA (7th ed.) Citation

United States. Hydrographic Office. (1897). Illustrative cloud forms for guidance of observers in classification of clouds. [publisher not identified].

Chicago Style (17th ed.) Citation

United States. Hydrographic Office. Illustrative Cloud Forms for Guidance of Observers in Classification of Clouds. Washington, D.C.: [publisher not identified], 1897.

MLA (9th ed.) Citation

United States. Hydrographic Office. Illustrative Cloud Forms for Guidance of Observers in Classification of Clouds. [publisher not identified], 1897.