共 18 条
- [1] AUGUSTADT WW, 1955, YAUSDA, P569
- [2] COLTON RB, 1958, NDGSMP 10, P74
- [3] CRABB GA, 1952, HIGHWAY RESEARCH ABS, V22, P67
- [4] GARSTKA WV, 1944, T AM GEOPHYS UNION 4, P838
- [5] GAUGER AW, 1930, UNIV N DAKOTA BULL, V11
- [6] HAINER JL, 1946, N DAKOTA GEOL SURVEY, V31
- [7] HORBERG L, 1951, J GEOL, V59, P1
- [9] LAIRD WM, 1944, N DAKOTA GEOL SURVEY, V17
- [10] LAIRD WM, 1941, N DAKOTA GEOL SURVEY, V12