Fraenkel, J. R., & Wallen, N. E. (1996). How to design and evaluate research in education (Third edition.). McGraw-Hill.
Citace podle Chicago (17th ed.)Fraenkel, Jack R., a Norman E. Wallen. How to Design and Evaluate Research in Education. Third edition. New York: McGraw-Hill, 1996.
Citace podle MLA (8th ed.)Fraenkel, Jack R., a Norman E. Wallen. How to Design and Evaluate Research in Education. Third edition. McGraw-Hill, 1996.
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