APA (7th ed.) Zitazioa
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 Style (17th ed.) Zitazioa
Block, Richard N., Karen Roberts, eta Ronald O. Clarke. Labor Standards in the United States and Canada. Kalamazoo, Mich.: W.E. Upjohn Institute for Employment Research, 2003.
MLA (9th ed.) Zitazioa
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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