APA (7th ed.) Citation

Turner, W. T. (1937). A system of rating soils. [publisher not identified].

Chicago Style (17th ed.) Citation

Turner, Willard Thad. A System of Rating Soils. (College Station, Texas): [publisher not identified], 1937.

MLA (9th ed.) Citation

Turner, Willard Thad. A System of Rating Soils. [publisher not identified], 1937.