000 004780000a22001690004500
008 140223b1908 xxu||||| |||| 00| 0 eng d
041 _aeng
080 _aU18 D8
082 _aU18 D8
100 _aAtwood Wallace W
700 _aSalisbury Rollin D
245 _aInterpretation of topographic maps
260 _aWashington
_bU S Govt.
_c1908
500 _aUnited states Geological survey, professional paper 60
650 _aPhysical Geography
650 _aTopographic Maps
999 _c53892
_d53892