Peter wallington. (1987). Butterworth Employment Law Hand Book (4.). Butter worth London.
Lua i Stíl Chicago (17ú heag.)Peter wallington. Butterworth Employment Law Hand Book. 4. London: Butter worth London, 1987.
Lua MLA (9ú heag.)Peter wallington. Butterworth Employment Law Hand Book. 4. Butter worth London, 1987.
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