Unesco Institute for Education & Vesselo, I. R. (1969). The Further training of mathematics teachers at secondary level: Report of a meeting of international experts, Hamburg, October 1968. Unesco Institute for Education.
Chicago Style (17. basım) AtıfUnesco Institute for Education ve I. R. Vesselo. The Further Training of Mathematics Teachers at Secondary Level: Report of a Meeting of International Experts, Hamburg, October 1968. Hamburg: Unesco Institute for Education, 1969.
MLA (8th ed.) AtıfUnesco Institute for Education ve I. R. Vesselo. The Further Training of Mathematics Teachers at Secondary Level: Report of a Meeting of International Experts, Hamburg, October 1968. Unesco Institute for Education, 1969.
Uyarı: Bu alıntı herzaman %100 doğru olmayabilir..