The Bill Gates Problem
Penguin Books Ltd (UK)
LoveReading New Best
£9.89≈ €11.53
Momox shop FR (revente/outbound) New
€11.59
Waterstones New
£10.99≈ €12.82
preigu DE New
€13.25
Mondadori Store New
€14.01
AbeBooks Used
€15.47
AbeBooks New
€15.68
