Pietrygała, Robert, and Zdzisław Cutter. 2020. “American Engineering Troops in the Vietnam Conflict of 1964–1975”. In Armia Kontra Natura, edited by Witold Jarno and Jarosław Kita, 1:275-87. Faces of War. Poland: Lodz University Press. https://doi.org/10.18778/8220-055-3.17.