Zeigler, H. (1967). The Political life of American teachers. Prentice- Hall.
Chicago-čujuhus (17. p.)Zeigler, Harmon. The Political Life of American Teachers. N. J.: Prentice- Hall, 1967.
MLA-čujuhus (9. p.)Zeigler, Harmon. The Political Life of American Teachers. Prentice- Hall, 1967.
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