Kennedy, M. L. (1998). Total Cost Assessment For Environmental Engineers And Managers Mitchell L. Kennedy. John Wiley & Sons.
Lua i Stíl Chicago (17ú heag.)Kennedy, Mitchell L. Total Cost Assessment For Environmental Engineers And Managers Mitchell L. Kennedy. John Wiley & Sons, 1998.
Lua MLA (8ú heag.)Kennedy, Mitchell L. Total Cost Assessment For Environmental Engineers And Managers Mitchell L. Kennedy. John Wiley & Sons, 1998.
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