US-Marine: Kite Balloons to Airships...the Navy's Lighter-than-Air Experience; (Ausgabe zu 75 Jahren US-Marineluftschiffahrt); Published by the Deputy Chief of Naval Operations (Air Warfare) and the Commander, Naval Air Systems Command, Washington, D.C., Edited by Roy A. Grossnick, Designed by Charles Cooney, U.S. Government Printing Office: 1983-187-029; Seite 22 (online beim Naval Historical Center oder als PDF-Download [Memento vom 4. April 2014 im Internet Archive])
US-Marine: Kite Balloons to Airships...the Navy's Lighter-than-Air Experience; (Ausgabe zu 75 Jahren US-Marineluftschiffahrt); Published by the Deputy Chief of Naval Operations (Air Warfare) and the Commander, Naval Air Systems Command, Washington, D.C., Edited by Roy A. Grossnick, Designed by Charles Cooney, U.S. Government Printing Office: 1983-187-029; Seite 22 (online beim Naval Historical Center oder als PDF-Download [Memento vom 4. April 2014 im Internet Archive])