Caidin, M. Wings into space: The history and future of winged space flight.
Citazione stile Chigago Style (17a edizione)Caidin, Martin. Wings into Space: The History and Future of Winged Space Flight.
Citatione MLA (8a ed.)Caidin, Martin. Wings into Space: The History and Future of Winged Space Flight.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.