APA (7th ed.) Citation

Blanchard, D. F. (1970). A simple method of writing traverse specifications. [publisher not identified].

Chicago Style (17th ed.) Citation

Blanchard, David Fred. A Simple Method of Writing Traverse Specifications. [College Station, Tex.]: [publisher not identified], 1970.

MLA (9th ed.) Citation

Blanchard, David Fred. A Simple Method of Writing Traverse Specifications. [publisher not identified], 1970.