Higgins, G. (1959). Labor-management cooperation. Diocesan Labor Institute.
Čikaški stil citiranja (17. izdanje)Higgins, George. Labor-management Cooperation. New Haven, Conn.: Diocesan Labor Institute, 1959.
MLA način citiranja (8. izdanje)Higgins, George. Labor-management Cooperation. Diocesan Labor Institute, 1959.
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