Cita APA

Crouthers, D. D., & Crouthers, D. D. (1962). Flags of American history. Maplewood N.J.: Hammond Incorporated.

Citación estilo Chicago

Crouthers, David D., y David D. Crouthers. Flags of American History. Maplewood N.J.: Hammond Incorporated, 1962.

Cita MLA

Crouthers, David D., y David D. Crouthers. Flags of American History. Maplewood N.J.: Hammond Incorporated, 1962.