APA

Smith M. J., . (1990). Program evaluation in the human services. New York: Springer Pub. Co.

Chicago

Smith Michael J, . 1990. Program evaluation in the human services. New York: Springer Pub. Co.

Harvard

Smith M. J., . (1990). Program evaluation in the human services. New York: Springer Pub. Co.

MLA

Smith Michael J, . Program evaluation in the human services. New York: Springer Pub. Co. 1990.