APA

United States, . (1974). Flight standards information manual, 2nd quarter FY 1974. [Washington, D.C: .

Chicago

United States, . 1974. Flight standards information manual, 2nd quarter FY 1974. [Washington, D.C: .

Harvard

United States, . (1974). Flight standards information manual, 2nd quarter FY 1974. [Washington, D.C: .

MLA

United States, . Flight standards information manual, 2nd quarter FY 1974. [Washington, D.C: . 1974.