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Comparative economic systems
Loucks, William Negele, (1966)
Contemporary economic systems : a comparative view
Pickersgill, Gary M., (1974)
Elliott, John E., (1973)
Getting and earning : a study of inequality
Bye, Raymond T., (1937)
Economics : principles and problems ; in 2 volumes.
Gemmill, Paul Fleming, (1944)
Economics ; Vol. 2