Walberg, H. J., & Haertel, G. D. (1990). The International encyclopedia of educational evaluation. Pergamon Press.
Chicago Style (17th ed.) CitationWalberg, Herbert J., and Geneva D. Haertel. The International Encyclopedia of Educational Evaluation. Oxford, England ; New York: Pergamon Press, 1990.
MLA (9th ed.) CitationWalberg, Herbert J., and Geneva D. Haertel. The International Encyclopedia of Educational Evaluation. Pergamon Press, 1990.
Warning: These citations may not always be 100% accurate.