Twomey, D. P. (1989). Labor & employment law, text & cases (8th ed.). South-Western Pub. Co.
Citazione stile Chigago Style (17a edizione)Twomey, David P. Labor & Employment Law, Text & Cases. 8th ed. Cincinnati: South-Western Pub. Co, 1989.
Citatione MLA (9a ed.)Twomey, David P. Labor & Employment Law, Text & Cases. 8th ed. South-Western Pub. Co, 1989.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.