Frachet, A. (1932). The S.A.B.C.A. "S.XI" commercial airplane (Belgian): A high-wing semicantilever monoplane. National Advisory Committee for Aeronautics.
Chicago Style (17th ed.) CitationFrachet, André. The S.A.B.C.A. "S.XI" Commercial Airplane (Belgian): A High-wing Semicantilever Monoplane. Washington, [D.C.]: National Advisory Committee for Aeronautics, 1932.
MLA (9th ed.) CitationFrachet, André. The S.A.B.C.A. "S.XI" Commercial Airplane (Belgian): A High-wing Semicantilever Monoplane. National Advisory Committee for Aeronautics, 1932.
Warning: These citations may not always be 100% accurate.