This question you asked is too difficult to answer! !

First of all, there are many classifications of coal books, such as about production, about sales, about washing,

Secondly, you can go to the websites of some publishing houses, which have comprehensive bibliographies, such as China University of Mining and Technology Press and Coal Industry Press.

Third, if you can, you can go to the Superstar Digital Library, where there are many books and the classification is clear.

Finally, if there are any books in urgent need, I can help you find an electronic version. Just give me your email address.