Cita APA (7th ed.)

International Bureau of Education. (1965). Modern languages at general secondary schools: Supplement 1965. International Bureau of Education.

Cita Chicago (17th ed.)

International Bureau of Education. Modern Languages at General Secondary Schools: Supplement 1965. Geneve: International Bureau of Education, 1965.

Cita MLA (8th ed.)

International Bureau of Education. Modern Languages at General Secondary Schools: Supplement 1965. International Bureau of Education, 1965.