Craig, D. P. (1978). Hip pocket guide to planning & evaluation. Learning Concepts.
Cita Chicago (17th ed.)Craig, Dorothy P. Hip Pocket Guide to Planning & Evaluation. Austin Tex: Learning Concepts, 1978.
Cita MLA (9th ed.)Craig, Dorothy P. Hip Pocket Guide to Planning & Evaluation. Learning Concepts, 1978.
Atenció: Aquestes cites poden no estar 100% correctes.