Jacobson, P. B. (1954). The effective school principal in elementary and secondary schools. Prentice-Hall.
Citace podle Chicago (17th ed.)Jacobson, Paul B. The Effective School Principal in Elementary and Secondary Schools. New York: Prentice-Hall, 1954.
Citace podle MLA (8th ed.)Jacobson, Paul B. The Effective School Principal in Elementary and Secondary Schools. Prentice-Hall, 1954.
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