Pyrczak, F. (1983). Research applications workbook: Keyed to major textbooks in education and the social sciences. EdITS.
Citace podle Chicago (17th ed.)Pyrczak, Fred. Research Applications Workbook: Keyed to Major Textbooks in Education and the Social Sciences. San Diego, Calif.: EdITS, 1983.
Citace podle MLA (8th ed.)Pyrczak, Fred. Research Applications Workbook: Keyed to Major Textbooks in Education and the Social Sciences. EdITS, 1983.
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