Hook, Thom. Sky Ship (2nd Ed) - The Akron Era - (The cause of her tragic loss revealed). Baltimore, Airshow Publishers, 1976. 8.8x11", 148pp, illus, wrps, VG. Largely the LTA career of Lt. "Red" Dugan (from his letters) who commanded the metal-clad blimp ZMC-2 and flew on the Akron.