Toland, John. Ships In The Sky, Great Airship Disasters of the World. London, Frederick Muller Ltd, 1957. 260pp, illus, VG in G dj. Classic work now over 50 yrs old! Clean copy that should be on every airship collector's shelf. Interesting that the 1957 copyright by Toland on the colophon page is covered over in fancy tape now coming loose. Must have been some controversy with the publisheer.