APA (7th ed.) Citation

UNESCO. (1980). Studies in mathematics education (2ª ed.). UNESCO.

Chicago Style (17th ed.) Citation

UNESCO. Studies in Mathematics Education. 2ª ed. UNESCO, 1980.

MLA (9th ed.) Citation

UNESCO. Studies in Mathematics Education. 2ª ed. UNESCO, 1980.

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