Perkins, G. e. (1986). Employee communications in the public sector. Inst. of Personnell Management.
Lua i Stíl Chicago (17ú heag.)Perkins, Geoff ed. Employee Communications in the Public Sector. London: Inst. of Personnell Management, 1986.
Lua MLA (9ú heag.)Perkins, Geoff ed. Employee Communications in the Public Sector. Inst. of Personnell Management, 1986.
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