PIETRYGAŁA, Robert; CUTTER, Zdzisław. American engineering troops in the Vietnam conflict of 1964–1975. In: JARNO, Witold; KITA, Jarosław (eds.). Armia kontra natura. Faces of warPoland: Lodz University Press,2020. v. 1p. 275–287. DOI: 10.18778/8220-055-3.17. Disponível em: https://press.uni.lodz.pl/index.php/wul/catalog/book/244/chapter/588. Acesso em: 15 feb. 2026.