U.S. Environmental Protection Agency. The environmental professional<U+0092>s guide to lean & six sigma.
Chicago Style (17. basım) AtıfU.S. Environmental Protection Agency. The Environmental Professional<U+0092>s Guide to Lean & Six Sigma.
MLA (9th ed.) AtıfU.S. Environmental Protection Agency. The Environmental Professional<U+0092>s Guide to Lean & Six Sigma.
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