APA (7th ed.) Citation

Unesco & Morris, R. (1986). Studies in mathematics education, volume 5: Teaching of geometry. Unesco.

Chicago Style (17th ed.) Citation

Unesco and Robert Morris. Studies in Mathematics Education, Volume 5: Teaching of Geometry. Paris: Unesco, 1986.

MLA (9th ed.) Citation

Unesco and Robert Morris. Studies in Mathematics Education, Volume 5: Teaching of Geometry. Unesco, 1986.

Warning: These citations may not always be 100% accurate.