APA (7th ed.) Citation

Washington, R. O. (1980). Program evaluation in the human services. University Press of America.

Chicago Style (17th ed.) Citation

Washington, R. O. Program Evaluation in the Human Services. Lanham, Md.: University Press of America, 1980.

MLA (9th ed.) Citation

Washington, R. O. Program Evaluation in the Human Services. University Press of America, 1980.