Edward de Bono's six thinking hats /
De Bono, Edward,
Edward de Bono's six thinking hats / Edward de Bono. - Des Moines, Lowa : Advanced Practical Thinking Training, c1992 - 208p. 28cm.
9780141033051
Edward de Bono's six thinking hats / Edward de Bono. - Des Moines, Lowa : Advanced Practical Thinking Training, c1992 - 208p. 28cm.
9780141033051