The Zeppelin in Combat A History of The German Naval Airship Division, 1912 - 1918  by Robinson. Douglas,

The Zeppelins by Hoyt. Edwin P,

Throw out Two Hands by Smith. Anthony,

Two Men in a Balloon by James. Robert,

Up in The Clouds by Ballantyne. R.M.,

Up Ship ! U.S. Navy Rigid Airships 1919 - 1935 by Robinson. Douglas H., and Keller. Charles L., 

Weekend with Willows. London to Oxford in a Gas Balloon by Hardy. Sir Alister,

With The Wind to the West by Petschull. Jürgen,

Yankee Poodle by Gibbs-Smith. C. H.,

Zanussi : Transatlantic balloon by Cameron. Don and Davey, Major Christopher

The Airship: Its Design, History, Operation and Future by Sprigg. Christopher,