APA

USA, . (19). War Department technical manual. Washington: U.S. Gov. Print. Off.

Chicago

USA, . 19. War Department technical manual. Washington: U.S. Gov. Print. Off.

Harvard

USA, . (19). War Department technical manual. Washington: U.S. Gov. Print. Off.

MLA

USA, . War Department technical manual. Washington: U.S. Gov. Print. Off. 19.