Lambert, J. H. (1904). Pennsylvania: The Building of an Empire. Philadelphia.
Dyfyniad Arddull ChicagoLambert, James H. Pennsylvania: The Building of an Empire. Philadelphia, 1904.
Dyfyniad MLALambert, James H. Pennsylvania: The Building of an Empire. Philadelphia, 1904.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.