APA (7th ed.) Citation

Jacobsen, H. (1899). Sketches from the Spanish-American War. G.P.O..

Chicago Style (17th ed.) Citation

Jacobsen, Hermann. Sketches from the Spanish-American War. Washington, D.C.: G.P.O., 1899.

MLA (9th ed.) Citation

Jacobsen, Hermann. Sketches from the Spanish-American War. G.P.O., 1899.