Isaac, S. (1971). Handbook in research and evaluation: A collection of principles, methods, and strategies useful in the planning, design, and evaluation of studies in education and the behavioral sciences. R. R. Knapp.
Citace podle Chicago (17th ed.)Isaac, Stephen. Handbook in Research and Evaluation: A Collection of Principles, Methods, and Strategies Useful in the Planning, Design, and Evaluation of Studies in Education and the Behavioral Sciences. San Diego, Calif: R. R. Knapp, 1971.
Citace podle MLA (9th ed.)Isaac, Stephen. Handbook in Research and Evaluation: A Collection of Principles, Methods, and Strategies Useful in the Planning, Design, and Evaluation of Studies in Education and the Behavioral Sciences. R. R. Knapp, 1971.
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