Norman, J. H. (1892). Complete guide to the world's twenty-nine metal monetary systems: Also, to the foreign and colonial exchanges of gold, silver and inconvertible paper on the unit of weight system, with aids to the construction of the science of money. Low, Marston.

Norman, John Henry. Complete Guide to the World's Twenty-nine Metal Monetary Systems: Also, to the Foreign and Colonial Exchanges of Gold, Silver and Inconvertible Paper on the Unit of Weight System, with Aids to the Construction of the Science of Money. Lond.: Low, Marston, 1892.

Norman, John Henry. Complete Guide to the World's Twenty-nine Metal Monetary Systems: Also, to the Foreign and Colonial Exchanges of Gold, Silver and Inconvertible Paper on the Unit of Weight System, with Aids to the Construction of the Science of Money. Low, Marston, 1892.