Lee, N. (1990). Self - paced business mathematics (4th ed.). PWS - Kent.
Chicago-čujuhus (17. p.)Lee, Nanci. Self - Paced Business Mathematics. 4th ed. Boston: PWS - Kent, 1990.
MLA-čujuhus (9. p.)Lee, Nanci. Self - Paced Business Mathematics. 4th ed. PWS - Kent, 1990.
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