De Bono, Edward, Think! : before it's too late / Edward De Bono. - London : Vermilion, 2009. - vii, 258 p. : ill. ; 22 cm. ISBN: 9780091924089 (hbk.) 9780091924096 (pbk.) Subjects--Topical Terms: Cognition Dewey Class. No.: 153 / DEB P09T