DEBONO EDWARD. (1983). FIVE-DAY COURSE IN THINKING. PENGUIN BOOKS INDIA (P) LTD.
Čikaški stil citiranja (17. izdanje)DEBONO EDWARD. FIVE-DAY COURSE IN THINKING. NEW YORK: PENGUIN BOOKS INDIA (P) LTD, 1983.
MLA način citiranja (9. izdanje)DEBONO EDWARD. FIVE-DAY COURSE IN THINKING. PENGUIN BOOKS INDIA (P) LTD, 1983.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.