Norman, J.H. Norman's single grain system : "for determining the par value of all moneys of account and gold and silver coins between all countries : also for ascertaining the comparative weights of fine gold or silver indicated by relative prices throughout the world : reprinted from the ""Bankers' Magazine"" for May, 1887" / by John Henry Norman; J.H. Norman .— : Printed by Waterlow and Sons Limited, 1887 .— 11 с. — Lang: eng .— URL: https://rucont.ru/efd/131161 (дата обращения: 03.05.2024)