APA Citation

Langbein, L. I. (1980). Discovering whether programs work: A Guide to statistical methods for program evaluation. Scott, Foresman and Company.

Chicago Style Citation

Langbein, Laura Irwin. Discovering Whether Programs Work: A Guide to Statistical Methods for Program Evaluation. Scott, Foresman and Company, 1980.

MLA Citation

Langbein, Laura Irwin. Discovering Whether Programs Work: A Guide to Statistical Methods for Program Evaluation. Scott, Foresman and Company, 1980.

Warning: These citations may not always be 100% accurate.