Hi Rashid,
Conestoga College packaging students have this book. Former students might want to sell their copy (for instance, if they leave the packaging field), or you might find the 6th edition at the bookstore. There is also a copy that can be seen at the college's library - Cambridge campus. Note that CPP exam is based on the 6th edition.
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Jean-Francois Guillerez CPP, Fellow
Professor, Packaging
Conestoga College Institute of Technology and Advanced Learning
Cambridge ON
Canada
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