Παραπομπή APA

New Helvetic Society. (1957). Switzerland, present and future 1963. Berne: Conference of Cantonal Directors of Education.

Παραπομπή Chicago Style

New Helvetic Society. Switzerland, Present and Future 1963. Berne: Conference of Cantonal Directors of Education, 1957.

Παραπομπή MLA

New Helvetic Society. Switzerland, Present and Future 1963. Berne: Conference of Cantonal Directors of Education, 1957.

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