Drucker, P. F. (1971). Men, ideas & politics: Essays. New York: Harper & Row.
シカゴスタイル引用形Drucker, Peter F. Men, Ideas & Politics: Essays. New York: Harper & Row, 1971.
MLA引用形式Drucker, Peter F. Men, Ideas & Politics: Essays. New York: Harper & Row, 1971.
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