DE BONO EDWARD. (1991). HANDBOOK FOR THE POSITIVE REVOLUTION. PENGUIN BOOKS INDIA (P) LTD.
Čikaški stil citiranja (17. izdanje)DE BONO EDWARD. HANDBOOK FOR THE POSITIVE REVOLUTION. ENGLAND: PENGUIN BOOKS INDIA (P) LTD, 1991.
MLA način citiranja (9. izdanje)DE BONO EDWARD. HANDBOOK FOR THE POSITIVE REVOLUTION. PENGUIN BOOKS INDIA (P) LTD, 1991.
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