I am glad if it helps you anyway. 
By the way, probably you didn´t belive that the book you have could have some common errors in its language...Well...Turkish is so full of traps that even educated natives have difficulty in commanding it. You can find some grammatically incorrect sentences even in the books of the famous Turkish novelist who won 2006 nobel literature prize.
If you listen to any speech of our ministers live, it is hard to find a correct sentence!..
Same for Spanish, still, your ministers speak a lot better than Venezuelan ones=) and don´t swear on live TV.