APA-viite (7. p.)
Block, R. N., Roberts, K., & Clarke, R. O. (2003). Labor standards in the United States and Canada. W.E. Upjohn Institute for Employment Research.
Chicago-viite (17. p.)
Block, Richard N., Karen Roberts, ja Ronald O. Clarke. Labor Standards in the United States and Canada. Kalamazoo, Mich.: W.E. Upjohn Institute for Employment Research, 2003.
MLA-viite (9. p.)
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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