Bagster-Colins, E. W. (1907). The teaching of German in secondary schools. The Columbia university press.
Citace podle Chicago (17th ed.)Bagster-Colins, Elijah William. The Teaching of German in Secondary Schools. New York: The Columbia university press, 1907.
Citace podle MLA (9th ed.)Bagster-Colins, Elijah William. The Teaching of German in Secondary Schools. The Columbia university press, 1907.
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