APA (7th ed.) Citation

Crouthers, D. D. (1973). Flags of American history. Hammond, inc..

Chicago Style (17th ed.) Citation

Crouthers, David D. Flags of American History. Maplewood, N.J.: Hammond, inc., 1973.

MLA (9th ed.) Citation

Crouthers, David D. Flags of American History. Hammond, inc., 1973.