APA (7th ed.) Citation

Wattenbarger, R. C. (1986). An investigation of convergence pressure methods. [publisher not identified].

Chicago Style (17th ed.) Citation

Wattenbarger, Robert Chick. An Investigation of Convergence Pressure Methods. [Place of publication not identified]: [publisher not identified], 1986.

MLA (9th ed.) Citation

Wattenbarger, Robert Chick. An Investigation of Convergence Pressure Methods. [publisher not identified], 1986.