Jansen, U. H. (1960). Marking and reporting procedures in the secondary schools of Texas. Texas Study of Secondary Education.
Citace podle Chicago (17th ed.)Jansen, Udo H. Marking and Reporting Procedures in the Secondary Schools of Texas. Austin: Texas Study of Secondary Education, 1960.
Citace podle MLA (8th ed.)Jansen, Udo H. Marking and Reporting Procedures in the Secondary Schools of Texas. Texas Study of Secondary Education, 1960.
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