TY - BOOK AU - De Bono, Edward TI - Lateral thinking : : a textbook of creativity SN - 9780140137798 U1 - 153.35 DEB PY - 1990///, ©1970 CY - London ; New York PB - : Penguin Books KW - Lateral thinking KW - Creative thinking KW - Creativiteit KW - Edward De Bono KW - Personality development ER -