APA (7th ed.) Citation

De Sivla, W. A., & Gunawardena, P. J. (1989). Educational policies and change 1977 - 1986. National Institute of Education Research Division.

Chicago Style (17th ed.) Citation

De Sivla, W. A., and P. J. Gunawardena. Educational Policies and Change 1977 - 1986. Maharagama: National Institute of Education Research Division, 1989.

MLA (9th ed.) Citation

De Sivla, W. A., and P. J. Gunawardena. Educational Policies and Change 1977 - 1986. National Institute of Education Research Division, 1989.