Wrenn, C. G., & Larsen, R. P. (1941). Studying effectively: A manual of answers to two major questions which confront every student: 1.What are my study weaknesses? 2.How can I improve my study methods? By C.G.Wrenn and R.P.Larsen. Stanford U.P..
Παραπομπή σε μορφή Chicago (17η εκδ.)Wrenn, Charles Gilbert, και Robert Peter Larsen. Studying Effectively: A Manual of Answers to Two Major Questions Which Confront Every Student: 1.What Are My Study Weaknesses? 2.How Can I Improve My Study Methods? By C.G.Wrenn and R.P.Larsen. Stanford, Calif.: Stanford U.P., 1941.
Παραπομπή σε μορφή MLA (8th εκδ.)Wrenn, Charles Gilbert, και Robert Peter Larsen. Studying Effectively: A Manual of Answers to Two Major Questions Which Confront Every Student: 1.What Are My Study Weaknesses? 2.How Can I Improve My Study Methods? By C.G.Wrenn and R.P.Larsen. Stanford U.P., 1941.