APA (7th ed.) Citation

United States. Hydrographic Office. (1899). Specifications for metal scraper. [publisher not identified].

Chicago Style (17th ed.) Citation

United States. Hydrographic Office. Specifications for Metal Scraper. [Washington]: [publisher not identified], 1899.

MLA (9th ed.) Citation

United States. Hydrographic Office. Specifications for Metal Scraper. [publisher not identified], 1899.

Warning: These citations may not always be 100% accurate.