The conduct of the Chaco War [by David H. Zook, Jr.] Pref. by Pablo Max YnsfranDavid Hartzler Zook · First published 1960Open the Tome
Conduct of the Chaco WarDavid H. (David Hartzler) 1930- Zook · First published 1960 · Latest edition 2021Open the Tome
A short history of warfareDavid Hartzler Zook · First published 1966 · Latest edition 1967Open the Tome
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