Harf, J. E., & Lombardi, M. O. (2013). Taking sides: Clashing view in global issues. Guilford: McGraw-Hill.
Trích dẫn kiểu ChicagoHarf, James E., và Mark Owen Lombardi. Taking Sides: Clashing View in Global Issues. Guilford: McGraw-Hill, 2013.
Deismireacht MLAHarf, James E., và Mark Owen Lombardi. Taking Sides: Clashing View in Global Issues. Guilford: McGraw-Hill, 2013.
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