APA (7. basım) Alıntı

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

Chicago Style (17. basım) Atıf

Washington, Robert O. Program Evaluation in the Human Services. Washington, D.C: University Press of America, 1980.

MLA (9th ed.) Atıf

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