I copied this off Glanzman's wiki page --
USS Stevens stories
Glanzman's USS Stevens stories for DC Comics appear in:
Our Army at War #220, 223, 225, 227, 230-232, 235 238, 240-242, 244-245, 247-248, 256-259, 261-262, 265-267, 275, 281-282, 284, 293, 298 (1970-1976)
Our Fighting Forces 128, 132, 134, 136, 138-139, 140-141, 143 (1970-1972)
Weird War Tales #4 (1972)
G.I. Combat #152 (1972)
Star Spangled War Stories #167, 171, 174 (1973)
Sgt. Rock #308 (1977)
Joe Kubert Presents #1 (2012)
You could probably cross-reference with Pedrin Guide.