APA

United States, . (1967). Aircraft engine and propeller type certificate data sheets and specifications. [Washington, D.C: .

Chicago

United States, . 1967. Aircraft engine and propeller type certificate data sheets and specifications. [Washington, D.C: .

Harvard

United States, . (1967). Aircraft engine and propeller type certificate data sheets and specifications. [Washington, D.C: .

MLA

United States, . Aircraft engine and propeller type certificate data sheets and specifications. [Washington, D.C: . 1967.