Kotchko, V. (1992). UNESCO and the international response to the gaps. Sharif Journal of Mechanical Engineering, 8(3), 20-26.
Kotchko, V. "UNESCO and the international response to the gaps.", Sharif Journal of Mechanical Engineering, 8, 3, 1992, 20-26.
Kotchko V. (1992). 'UNESCO and the international response to the gaps.', Sharif Journal of Mechanical Engineering, 8(3), pp. 20-26.
V. Kotchko, "UNESCO and the international response to the gaps.," Sharif Journal of Mechanical Engineering, 8 3 (1992): 20-26,
Kotchko V. UNESCO and the international response to the gaps. Sharif Journal of Mechanical Engineering. 1992;8(3):20-26 (In Persian).
