Harley Mitchell. (2007). Surviving Valley Forge. U.S.A: MC Graw Hill.
Trích dẫn kiểu ChicagoHarley Mitchell. Surviving Valley Forge. U.S.A: MC Graw Hill, 2007.
MLA citiranjeHarley Mitchell. Surviving Valley Forge. U.S.A: MC Graw Hill, 2007.
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