References
^ W.E.B. Griffin, William E. Butterworth IVMen at War Ser.: The Double Agents : A Men at War Novel by William E. Butterworth IV and W. E. B. Griffin (2008, Trade Paperback) ISBN 9780515144604 (revised Feb 2023)^ Griffin, W.E.B.; Butterworth, William E. (2014). The Double Agents A Men at War Novel, Jove. BiggerBooks. ISBN 9780515144604 (revised May 2022)
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