एपीए उद्धरण

Drucker, P. F. (1969). The age of discontinuity; guidelines to our changing society. New York: Harper & Row.

शिकागो स्टाइल उद्धरण

Drucker, Peter F. The Age of Discontinuity; Guidelines to Our Changing Society. New York: Harper & Row, 1969.

एमएलए उद्धरण

Drucker, Peter F. The Age of Discontinuity; Guidelines to Our Changing Society. New York: Harper & Row, 1969.