SITUATION ON THE NIGHT OF L6-17 MAY 1951
Source: Lynn Montross, et al., The East Central Front
Montandon, Joshua W. Battle for the Punchbowl: The U. S. 1st Marine Division 1951 Fall Offensive of the Korean War. Denton, Texas. UNT Digital Library. http://digital.library.unt.edu/ark:/67531/metadc3938/. Accessed July 29, 2014.