LeFaivre Phil, & Decker Flo. (2004). Exploring American History (In lần thứ 1.). American: McGraw -Hill.
Παραπομπή Chicago StyleLeFaivre Phil, και Decker Flo. Exploring American History. In lần thứ 1. American: McGraw -Hill, 2004.
Παραπομπή MLALeFaivre Phil, και Decker Flo. Exploring American History. In lần thứ 1. American: McGraw -Hill, 2004.
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