APA (7th ed.) Citation

Wooldridge, B. G. (1983). Effects of color coding on keying time and errors. [publisher not identified].

Chicago Style (17th ed.) Citation

Wooldridge, Brenda Gail. Effects of Color Coding on Keying Time and Errors. [Place of publication not identified]: [publisher not identified], 1983.

MLA (9th ed.) Citation

Wooldridge, Brenda Gail. Effects of Color Coding on Keying Time and Errors. [publisher not identified], 1983.