De Bono, E. (1990). Lateral thinking for management: A handbook. London: Penguin.
Dyfyniad Arddull ChicagoDe Bono, Edward. Lateral Thinking for Management: A Handbook. London: Penguin, 1990.
Dyfyniad MLADe Bono, Edward. Lateral Thinking for Management: A Handbook. London: Penguin, 1990.
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