TUCKER, S. A. (1982). Production Standard For Profit Planning Spencer A. Tucker Dan Thomas H. Lennon. VNR.
Lua i Stíl Chicago (17ú heag.)TUCKER, Spencer A. Production Standard For Profit Planning Spencer A. Tucker Dan Thomas H. Lennon. VNR, 1982.
Lua MLA (8ú heag.)TUCKER, Spencer A. Production Standard For Profit Planning Spencer A. Tucker Dan Thomas H. Lennon. VNR, 1982.
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