APA

United States, . (1972). Aircraft engine type certification handbook. [Washington, D.C: .

Chicago

United States, . 1972. Aircraft engine type certification handbook. [Washington, D.C: .

Harvard

United States, . (1972). Aircraft engine type certification handbook. [Washington, D.C: .

MLA

United States, . Aircraft engine type certification handbook. [Washington, D.C: . 1972.