Ebel, R. L. (1969). Encyclopedia of educational research (4th Ed.). Macmillan.
シカゴスタイル引用形Ebel, Robert L. Encyclopedia of Educational Research. 4th Ed. London: Macmillan, 1969.
MLA引用形式Ebel, Robert L. Encyclopedia of Educational Research. 4th Ed. Macmillan, 1969.
警告: この引用は必ずしも正確ではありません.