cipher - The shifted library

I'm keeping an alphabetically sorted (somehow) collection of books in my library. Unfortunately somebody shifted things around a bit and then deleted some stuff in all of the resulting pairs. Only the 26th pair is a correct match, I believe, although that's been scrambled even more and has become completely unrecognizable now. Can you figure what it used to be? The numbers might help you.

Here are the 25 shifted pairs:

{3,8} $\implies$ CHL DC - FT
{6,1} $\implies$ MLYB - GAXPCAS
{9,9} $\implies$ JAMJOYC - WUTHRINGHIGHT
{4,3} $\implies$ FODOR DOTOVK - UL
{9,2} $\implies$ JLG - CMPUHMT
{9,5} $\implies$ DLDFO - THCTCHRTHRY

{1,9} $\implies$ ????? - BINSNCUS
{1,11} $\implies$ MAMLVLL - TGTY-FOU
{9,11} $\implies$ GERGE ELT - MBY-DCK
{1,6} $\implies$ JONTN SWFT - MDDLEMRC
{4,1} $\implies$ MKWN - GULLVE'SVELS
{1,4} $\implies$ W - THDVNTUFHUKBYFNN
{4,5} $\implies$ BMSTK - LICINWNDLND
{14,17} $\implies$ MIGE E EVNTES -
{5,8} $\implies$ JRRLK - DQUX
{8,2} $\implies$ AYPW - RDFRIGS

{17,1} $\implies$ GBRLGRRQZ - DNTOTHSOFT
{3,7} $\implies$ P - ONUNDDYSOFSOITUD
{7,2} $\implies$ JEUSE - OKILLMOCKIGBIRD
{4,7} $\implies$ LOTOLSTOY - PRIDANDPRJUDIC
{5,3} $\implies$ THUCODOYL - KI
{1,9} $\implies$ M - THEHUFTHESEES
{13,14} $\implies$ ERNES HEMNGWY - LOL
{4,12} $\implies$ XRU - THOTH
{4,7} $\implies$ AYLLY - TTUKT

And the 26th is:
{10,N/A} $\implies$ TTKJTKZU - DFJ

Answer

Continuing from @Roger's answer, which shows how to get meaning out of the groups of letters,

the numbers refer to letter positions in the author names.

The first numbers end up spelling the alphabet (3rd in Charles Dickens is A, 6th in Emily Bronte is B, ...)

The second numbers, still taken from the author, spell out
DECODEWITHMISSINGLASTNAME

The "missing last name" refers to the 7th entry, which is George Orwell; it was missing (or just question marks) in the original list.
Using a Vigenere cipher with ORWELL as the key, we can decode the 26th entry as:
FCOFIZLD - HBY
which can be filled in to give:

F SCOTT FITZGERALD - THE GREAT GATSBY