Citace podle APA (7th ed.)
BROWN, R. (1933). Mathematical Difficulties of students of educational statistics. Teachers College, Columbia Univ.
Citace podle Chicago (17th ed.)
BROWN, Ralph. Mathematical Difficulties of Students of Educational Statistics. New York: Teachers College, Columbia Univ, 1933.
Citace podle MLA (9th ed.)
BROWN, Ralph. Mathematical Difficulties of Students of Educational Statistics. Teachers College, Columbia Univ, 1933.
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