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More on optimal denominations for coins and currency
Wynne, Mark A., (1997)
Israel-Africa : the world's coin is ingratitude
(1973)
History and coinage of Skandagupta Kramāditya
Singh, Jai Prakash, (1976)
The Lapps : 29 photographs, 52 line drawings and 3 maps
Bosi, Roberto, (19XX)