Innes, J., Mitchell, F., & Yoshikawa, T. (1994). Activity costing for engineers. Research Studies Press.
Lua i Stíl Chicago (17ú heag.)Innes, John, Falconer Mitchell, agus Takeo Yoshikawa. Activity Costing for Engineers. Taunton, Somerset, England: Research Studies Press, 1994.
Lua MLA (9ú heag.)Innes, John, et al. Activity Costing for Engineers. Research Studies Press, 1994.
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