APA

United States, . (1970). General aviation aircraft accident information system. [Washington, D.C: .

Chicago

United States, . 1970. General aviation aircraft accident information system. [Washington, D.C: .

Harvard

United States, . (1970). General aviation aircraft accident information system. [Washington, D.C: .

MLA

United States, . General aviation aircraft accident information system. [Washington, D.C: . 1970.