^Chacón، H. Rafael. Over there! : Montanans in the great war. Chacón, H. Rafael., Montana Museum of Art & Culture., University of Montana Press (Missoula, Mont.),, University of Montana Printing & Graphic Services. Missoula, Montana: Montana Museum of Art & Culture. ص. 26–27. ISBN:9780998343839. OCLC:1006511690. مؤرشف من الأصل في 2019-12-16.