APA (7th ed.) Citation

Verret, E. P. (1967). An automated scoring system for educational testing. [publisher not identified].

Chicago Style (17th ed.) Citation

Verret, Erik Phillip. An Automated Scoring System for Educational Testing. [College Station, Tex.]: [publisher not identified], 1967.

MLA (9th ed.) Citation

Verret, Erik Phillip. An Automated Scoring System for Educational Testing. [publisher not identified], 1967.