APA (7th ed.) Citation

Abraham, H. J. (1981). World problems in the classroom. UNESCO.

Chicago Style (17th ed.) Citation

Abraham, Herbert J. World Problems in the Classroom. Paris: UNESCO, 1981.

MLA (9th ed.) Citation

Abraham, Herbert J. World Problems in the Classroom. UNESCO, 1981.

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