If you meant a different work by or about Viktor Korchnoi, these are also commonly available:
Are you focusing on a Korchnoi played, or just looking for his best overall games ? Korchnoi: Move by Move [1 ed.] 1781941394, 9781781941393 Download Korchnoi move pdf
: His famous autobiography can be borrowed digitally at the Internet Archive . If you meant a different work by or
: This digital library offers a PDF version for online reading with a subscription at Perlego . Download Korchnoi move pdf
: You can borrow the digital version for 1 hour (renewable) or 14 days at the Internet Archive .