De Bono, Edward, 1933- Lateral thinking: A textbook of creativity / - London, Penguin books, 1990. - 260 p. ill. 21 cm. ISBN: 9780140137798 0140137793 LCCN: 67105624 Nat. Bib. No.: B67-18330 LC Class. No.: BF408 / .D4 1990 Dewey Class. No.: 153.4