George, M. L. (2005). Lean Six Sigma Pocket Toolbook (NA.). McGrowhill Publication.
Chicago-čujuhus (17. p.)George, Michael L. Lean Six Sigma Pocket Toolbook. NA. New york: McGrowhill Publication, 2005.
MLA-čujuhus (9. p.)George, Michael L. Lean Six Sigma Pocket Toolbook. NA. McGrowhill Publication, 2005.
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