Downey, Lynn (2007). "A Short History of Denim"(PDF). official Levi Strauss & Co. historian. Archived from the original(PDF) on 9 ஆகஸ்ட் 2014. Retrieved 2 June 2014. {{cite web}}: Check date values in: |archive-date= (help)
Downey, Lynn (2007). "A Short History of Denim"(PDF). official Levi Strauss & Co. historian. Archived from the original(PDF) on 9 ஆகஸ்ட் 2014. Retrieved 2 June 2014. {{cite web}}: Check date values in: |archive-date= (help)