APA استشهاد

Unesco. (1979). New UNESCO sourcebook for science teaching (1st.). Universities Press.

استشهاد بنمط شيكاغو

Unesco. New UNESCO Sourcebook for Science Teaching. 1st. Hyderabad: Universities Press, 1979.

MLA استشهاد

Unesco. New UNESCO Sourcebook for Science Teaching. 1st. Universities Press, 1979.