共 34 条
[11]
DAVIS WM, 1909, QUAR J GEOL SOC, V45, P281
[12]
DAVIS WM, 1905, 8 INT GEOGR C WASH 1, P150
[13]
DAVIS WM, 1900, APPALACHIA, V9, P136
[14]
DAVIS WM, 1905, B MUS COMP ZOOL HARV, V49, P1
[15]
DEMARTONNE E, 1911, LA GEOGR, V23, P39
[17]
FENNEMAN NM, 1905, B US GEOL SURV, V265
[18]
GANNETT H, 1899, DICT ALTITUDES US
[20]
HOBBS WH, 1910, GEOGR J, P146