International Bureau of Education. (1972). Initiatives in education: A world profile for 1971-1972. Unesco.
Cita Chicago (17th ed.)International Bureau of Education. Initiatives in Education: A World Profile for 1971-1972. Paris: Unesco, 1972.
Cita MLA (8th ed.)International Bureau of Education. Initiatives in Education: A World Profile for 1971-1972. Unesco, 1972.
Atenció: Aquestes cites poden no estar 100% correctes.