Childs, C. G. (1847). Pennsylvania the pioneer in internal improvements: The coal and iron trade, embracing statistics of Pennsylvania. C.G. Childs.
Chicago-Zitierstil (17. Ausg.)Childs, Cephas Grier. Pennsylvania the Pioneer in Internal Improvements: The Coal and Iron Trade, Embracing Statistics of Pennsylvania. Philadelphia: C.G. Childs, 1847.
MLA-Zitierstil (9. Ausg.)Childs, Cephas Grier. Pennsylvania the Pioneer in Internal Improvements: The Coal and Iron Trade, Embracing Statistics of Pennsylvania. C.G. Childs, 1847.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.