PARKISON, C. N. (1977). Communicate Parkison's Formila For Business Survival C.northcote Parkison Dan Nigel Rowe. Prentice Hall International.
Lua i Stíl Chicago (17ú heag.)PARKISON, C. Northcote. Communicate Parkison's Formila For Business Survival C.northcote Parkison Dan Nigel Rowe. Prentice Hall International, 1977.
Lua MLA (8ú heag.)PARKISON, C. Northcote. Communicate Parkison's Formila For Business Survival C.northcote Parkison Dan Nigel Rowe. Prentice Hall International, 1977.
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