APA-viite (7. p.)
Erugo, S. (2019). Introduction to Nigerian labour law: Contract of employment and labour practice (Second edition.). Princeton & Associates Publishing Co. Ltd..
Chicago-viite (17. p.)
Erugo, Sam. Introduction to Nigerian Labour Law: Contract of Employment and Labour Practice. Second edition. Lagos: Princeton & Associates Publishing Co. Ltd., 2019.
MLA-viite (9. p.)
Erugo, Sam. Introduction to Nigerian Labour Law: Contract of Employment and Labour Practice. Second edition. Princeton & Associates Publishing Co. Ltd., 2019.
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