APA

(1977). Research techniques for program planning, monitoring, and evaluation. New York: Columbia University Press.

Chicago

1977. Research techniques for program planning, monitoring, and evaluation. New York: Columbia University Press.

Harvard

(1977). Research techniques for program planning, monitoring, and evaluation. New York: Columbia University Press.

MLA

Research techniques for program planning, monitoring, and evaluation. New York: Columbia University Press. 1977.