Article Crouch, Tom D. (2011)
Chauffeur of the skies: Roy Knabenshue and the gas bag era. Timeline [Ohio Historical Society] (pp. 24-41). (/isis/citation/CBB001181758/) unapi

Book Winter, Frank H.; Elder, Donald C. (2007)
History of rocketry and astronautics: Proceedings of the Thirty-Third History Symposium of the International Academy of Astronautics: Amsterdam, the Netherlands, 1999. (/isis/citation/CBB001181639/) unapi

Book Crouch, Tom D.; Jakab, Peter L. (2003)
The Wright brothers and the invention of the aerial age. (/isis/citation/CBB001180703/) unapi

Book Hansen, James R. (2003)
The wind and beyond: A documentary journey into the history of aerodynamics in America. (/isis/citation/CBB001180340/) unapi

Book Crouch, Tom D. (2003)
Wings: A history of aviation from kites to the space age. (/isis/citation/CBB001180704/) unapi

Book Crouch, Tom D. (2002)
First flight: The Wright Brothers and the invention of the airplane. (/isis/citation/CBB001180702/) unapi

Book Baron, Robert C. (2002)
What was it like Orville?: Some observations on the early space program. (/isis/citation/CBB001180845/) unapi

Chapter Crouch, Tom D. (2000)
Introduction: A gift of tradition. In: The genesis of flight: The aeronautical history collection of Colonel Richard Gimbel (p. 1). (/isis/citation/CBB001181756/) unapi

Book Galison, Peter; Roland, Alex (2000)
Atmospheric flight in the twentieth century. (/isis/citation/CBB001181453/) unapi

Book Gimbel, Richard (2000)
The genesis of flight: The aeronautical history collection of Colonel Richard Gimbel. (/isis/citation/CBB001181755/) unapi

Book Launius, Roger D. (1999)
Innovation and the development of flight. (/isis/citation/CBB001180290/) unapi

Chapter Neufeld, Michael J. (1999)
German spaceflight advocacy from Weimar to Disney. In: 1998 National Aerospace Conference: The meaning of flight in the 20th century, conference proceedings, October 1--3, 1998, Wright State University, Dayton, Ohio (pp. 72-76). (/isis/citation/CBB001180293/) unapi

Book Launius, Roger D. (1999)
Innovation and the development of flight. (/isis/citation/CBB001181455/) unapi

Book Leary, William M; Trimble, William F (1995)
From airships to airbus: The history of civil and commercial aviation. (/isis/citation/CBB001181457/) unapi

Article Hansen, James R. (1985)
The Cowling story at Langley Aeronautical Laboratory, 1926--1936. Aerospace Historian (p. 161). (/isis/citation/CBB001180350/) unapi

Book Crouch, Tom D.; Cole, Wayne S. (1977)
Charles A. Lindbergh: An American life. (/isis/citation/CBB001180698/) unapi

Book Crouch, Tom D. (1971)
The giant leap: A chronology of Ohio aerospace events and personalities, 1815--1969. (/isis/citation/CBB001180697/) unapi