Spring Joel. (2004). The American School 1642 - 2004. American: McGraw -Hill.
Trích dẫn kiểu ChicagoSpring Joel. The American School 1642 - 2004. American: McGraw -Hill, 2004.
Deismireacht MLASpring Joel. The American School 1642 - 2004. American: McGraw -Hill, 2004.
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