Traverse and leveling in Oklahoma. - Wolfard, Noah Ellsworth (Norman, 1938)
pt. 1. Southwestern Oklahoma. 1938.--pt. 2. Northwestern Oklahoma.
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."
Keywords: Oklahoma -- Surveys; Bench-marks -- Oklahoma; Leveling