APA (7th ed.) Citation

Scallen, S. (1992). An empirical examination of the zone of optimal functioning theory. [publisher not identified].

Chicago Style (17th ed.) Citation

Scallen, Stephen. An Empirical Examination of the Zone of Optimal Functioning Theory. [Place of publication not identified]: [publisher not identified], 1992.

MLA (9th ed.) Citation

Scallen, Stephen. An Empirical Examination of the Zone of Optimal Functioning Theory. [publisher not identified], 1992.