Cita APA (7a ed.)
Palmer Jr., H. R. This Was Air Travel. Bonanza Books.
Cita estilo Chicago (17a ed.)
Palmer Jr., Henry R. This Was Air Travel. Nueva York, EUA: Bonanza Books.
Cita MLA (9a ed.)
Palmer Jr., Henry R. This Was Air Travel. Bonanza Books.
Advarsel: Disse citationer er muligvist ikke 100% nøjagtige.