9781846851117

• 978 — Country prefix (Bücher (ISBN))
• 184685111 — Manufacturer & product code
• 7 — Check digit (confirms the number is well-formed)

EAN-13 ✓ Valid check digit Registered in Bücher (ISBN)

• 9781846851704 — So Do Sudoku: The Definitive Sudoku Solver

The Purple Butterfly: Diary Of A Thyroid Cancer Patient

Search for The Purple Butterfly: Diary Of A Thyroid Cancer Patient on Amazon (or for the code 9781846851117)