APA (7th ed.) Citation

Nields, J. P. (1929). Washington's army in Delaware in the summer of 1777.

Chicago Style (17th ed.) Citation

Nields, John P. Washington's Army in Delaware in the Summer of 1777. [n.p, 1929.

MLA (9th ed.) Citation

Nields, John P. Washington's Army in Delaware in the Summer of 1777. 1929.