APA (7th ed.) Citation

Flexner, W. W., & Walker, G. L. (1942). Military and naval maps and grids: Their use and construction. The Dryden press.

Chicago Style (17th ed.) Citation

Flexner, William Welch, and Gordon L. Walker. Military and Naval Maps and Grids: Their Use and Construction. New York: The Dryden press, 1942.

MLA (8th ed.) Citation

Flexner, William Welch, and Gordon L. Walker. Military and Naval Maps and Grids: Their Use and Construction. The Dryden press, 1942.