Agger, Eugene E. (1918). "Our Large Change: The Denominations of the Currency". The Quarterly Journal of Economics. 32 (2): 257–277. doi:10.2307/1885428. JSTOR1885428.
Agger, Eugene E. (1918). "Our Large Change: The Denominations of the Currency". The Quarterly Journal of Economics. 32 (2): 257–277. doi:10.2307/1885428. JSTOR1885428.