Fossum, J. A. (1989). Labor relations: Development,structure,process (4th. ed.). Irwin.
Lua i Stíl Chicago (17ú heag.)Fossum, John A. Labor Relations: Development,structure,process. 4th. ed. Boston: Irwin, 1989.
Lua MLA (9ú heag.)Fossum, John A. Labor Relations: Development,structure,process. 4th. ed. Irwin, 1989.
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