APA (7th ed.) Citation

Mathison, S. (1991). Special Feature: Internal Evaluation. Evaluation and Program Planning, 14(3), 157.

Chicago Style (17th ed.) Citation

Mathison, Sandra. "Special Feature: Internal Evaluation." Evaluation and Program Planning 14, no. 3 (1991): 157.

MLA (9th ed.) Citation

Mathison, Sandra. "Special Feature: Internal Evaluation." Evaluation and Program Planning, vol. 14, no. 3, 1991, p. 157.