MOTTEL, W. J. (1995). Industrial Safety Is Good Business The Du Pont Story William J. Mottel, Joseph F.long, David E. Morrison. Van Nostrand.
Čikaški stil citiranja (17. izdanje)MOTTEL, William J. Industrial Safety Is Good Business The Du Pont Story William J. Mottel, Joseph F.long, David E. Morrison. Van Nostrand, 1995.
MLA način citiranja (8. izdanje)MOTTEL, William J. Industrial Safety Is Good Business The Du Pont Story William J. Mottel, Joseph F.long, David E. Morrison. Van Nostrand, 1995.
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