1) Lighter than air: an illustrated history of balloons and airships

Author
Crouch, Tom D
Publisher
Johns Hopkins University Press, in association with the Smithsonian National Air and Space Museum
Pub. Date
c2009
Language
English

2) Wings: a history of aviation from kites to the space age

Author
Crouch, Tom D
Publisher
Smithsonian National Air and Space Museum
Pub. Date
c2003
Language
English