APA aipamena

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

Chicago Style aipamena

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

MLA aipamena

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

Kontuz: berrikusi erreferentzia hauek erabili aurretik.