Tohutoro APA (7th ed.)
Block, R. N., Roberts, K., & Clarke, R. O. (2003). Labor standards in the United States and Canada. W.E. Upjohn Institute for Employment Research.
Tohutoru Kātū Chicago (17th ed.)
Block, Richard N., Karen Roberts, me Ronald O. Clarke. Labor Standards in the United States and Canada. Kalamazoo, Mich.: W.E. Upjohn Institute for Employment Research, 2003.
Tohutoro MLA (9th ed.)
Block, Richard N., et al. Labor Standards in the United States and Canada. W.E. Upjohn Institute for Employment Research, 2003.
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