APA

United States, . (1981). Supplemental structural inspection program for large transport category airplanes. [Washington, D.C: .

Chicago

United States, . 1981. Supplemental structural inspection program for large transport category airplanes. [Washington, D.C: .

Harvard

United States, . (1981). Supplemental structural inspection program for large transport category airplanes. [Washington, D.C: .

MLA

United States, . Supplemental structural inspection program for large transport category airplanes. [Washington, D.C: . 1981.