Gaya APA

DRUCKER, Peter F.. (1980). Managing in turbulent times . New York: Harper & Row.

Gaya Chicago

DRUCKER, Peter F.. Managing in turbulent times. New York: Harper & Row, 1980. Text.

Gaya MLA

DRUCKER, Peter F.. Managing in turbulent times. New York: Harper & Row, 1980. Text.

Gaya Turabian

DRUCKER, Peter F.. Managing in turbulent times. New York: Harper & Row, 1980. Print.