TY - BOOK AU - Wolfard,Noah Ellsworth TI - Traverse and leveling in Oklahoma AV - QE153 .A2 no. 58, etc. PY - 1938///-<1940 > CY - Norman KW - Bench-marks KW - Oklahoma KW - Leveling KW - Surveys N1 - Photo-printed, pt. I-; "Data secured through WPA and other relief projects, sponsored by State conservation commission and Division of water resources of the Oklahoma Planning and resources board."; pt. 1. Southwestern Oklahoma. 1938.--pt. 2. Northwestern Oklahoma ER -