APA (7th ed.) Citation

Simpson, R. F. (1966). Social factors and educational efficiency. The Hong Kong Council for Educational Research.

Chicago Style (17th ed.) Citation

Simpson, R F. Social Factors and Educational Efficiency. Hong Kong: The Hong Kong Council for Educational Research, 1966.

MLA (8th ed.) Citation

Simpson, R F. Social Factors and Educational Efficiency. The Hong Kong Council for Educational Research, 1966.