Twomey, D. P. (1989). Labor & Employment Law, Text & Cases David P. Twomey. South-Western.
Chicago-viite (17. p.)Twomey, David P. Labor & Employment Law, Text & Cases David P. Twomey. South-Western, 1989.
MLA-viite (8. p.)Twomey, David P. Labor & Employment Law, Text & Cases David P. Twomey. South-Western, 1989.
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