Sumner, R. (1991). The role of assessment in schools: A new edition of the role of testing in schools (Rev. ed.). Neer-Nelson.
Citace podle Chicago (17th ed.)Sumner, Raymond. The Role of Assessment in Schools: A New Edition of the Role of Testing in Schools. Rev. ed. Windsor, Berkshire, England: Neer-Nelson, 1991.
Citace podle MLA (9th ed.)Sumner, Raymond. The Role of Assessment in Schools: A New Edition of the Role of Testing in Schools. Rev. ed. Neer-Nelson, 1991.
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