PARKISON, N. (1987). Communicate Parckison's Formula For Business Survival C.norchote Parkison Dan Nigel Rowe. Prentice-Hall.
Lua i Stíl Chicago (17ú heag.)PARKISON, Northcote. Communicate Parckison's Formula For Business Survival C.norchote Parkison Dan Nigel Rowe. Prentice-Hall, 1987.
Lua MLA (8ú heag.)PARKISON, Northcote. Communicate Parckison's Formula For Business Survival C.norchote Parkison Dan Nigel Rowe. Prentice-Hall, 1987.
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