एपीए उद्धरण

Drucker, P. F. (1971). Men, ideas & politics; essays. New York: Harper & Row.

शिकागो स्टाइल उद्धरण

Drucker, Peter F. Men, Ideas & Politics; Essays. New York: Harper & Row, 1971.

एमएलए उद्धरण

Drucker, Peter F. Men, Ideas & Politics; Essays. New York: Harper & Row, 1971.