Lyons, T. P. (1971). The personnel functions in a changing environment. Pitman.
Lua i Stíl Chicago (17ú heag.)Lyons, Terry P. The Personnel Functions in a Changing Environment. [London]: Pitman, 1971.
Lua MLA (9ú heag.)Lyons, Terry P. The Personnel Functions in a Changing Environment. Pitman, 1971.
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