Converting 13 Digit ISBNs to 10 (And Vice Versa)
The formulas for this, which will work in LibreOffice (or OpenOffice) Calc, are to be found at User Offline: How to write a spreadsheet formula for ISBN-10 to ISBN-13 and ASIN. Considering that post is dated in 2008, I thought it worthwhile to add another link. I wanted to do this, but to ISBNs with…