Zahorchak, M. G. (1972). Art of low risk investing. Van nostroand reinhold companhy.
Dyfyniad Arddull ChicagoZahorchak, Michael G. Art of Low Risk Investing. New york: Van nostroand reinhold companhy, 1972.
Dyfyniad MLAZahorchak, Michael G. Art of Low Risk Investing. Van nostroand reinhold companhy, 1972.
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