For those who have any doubt and are interested in the correct chronology of the stories from The Last Wish and The Sword of Destiny books (I borrowed it from a certain forum, but it is in Polish so i guess not many people will understand it. Anyway here is the source:
http://sapkowski.pl/forum/viewtopic.php?f=14&t=3507):
1.A Grain of Truth
2.The Lesser Evil
3.The Edge of the World
4.The Last Wish - first meeting of Geralt with Yennefer - 1249
- June 1250 - Geralt fleeing from Yennefer in Vengerberg
5. A Question of Price - October of 1252, Pavetta is pregnant
6. The Witcher - 1253
7. The Voice of Reason - after fight with Strzyga (i don't know english translation for this, in google translator it's a "vampire" but it's not a vampire) - 1253
8. The Bounds of Reason - Geralt meets Yennefer after 4 years - 1254
9. A Shard of Ice - Yennefer leaves Geralt (i think that was in 1256, but i'm not sure about that)
10. Eternal Fire
11.A Little Sacrifice
12.The Sword of Destiny - Geralt encounters in Brokilon Ciri, which looks at 10 years of child - spring/summer 1262
13.Something More - one year after First War with Nilfgaard, Geralt and Ciri meeting in front of the home merchant Yurga - early autumn 1264
Geralt's flashbacks in the latter story:
- The meeting of Geralt with Yennefer at the feast of Belleteyn - 1258
- Cintra, meeting with Calanthe, Ciri is 5 years old - 1258
- Early autumn, a meeting of Geralt with Jaskier (or Dandelion) over Jaruga - First War with Nilgaard, defeat at Sodden - 1263
And sorry for my english :[