APA

United States, . (1973). Flight standards information manual, 1st quarter FY 1974. [Washington, D.C: .

Chicago

United States, . 1973. Flight standards information manual, 1st quarter FY 1974. [Washington, D.C: .

Harvard

United States, . (1973). Flight standards information manual, 1st quarter FY 1974. [Washington, D.C: .

MLA

United States, . Flight standards information manual, 1st quarter FY 1974. [Washington, D.C: . 1973.