. Engineer course in topography. Figure T6Put in 10-foot contours. MAP REPRODUCTION 670 860 6/0 > 797. 785 Figure T7 Scale 1:20,000 Put in proper contours. 146 TOPOGRAPHY 917 060 96Z S30 878
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectmilitar, bookyear1922