Warne, A. E. (1950). Certifying a bargaining agent under the Pennsylvania Labor Relations Act. State College.
Lua i Stíl Chicago (17ú heag.)Warne, Alice E. Certifying a Bargaining Agent Under the Pennsylvania Labor Relations Act. State College, 1950.
Lua MLA (8ú heag.)Warne, Alice E. Certifying a Bargaining Agent Under the Pennsylvania Labor Relations Act. State College, 1950.
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