Bibliography refers to:
* A list of works (books, articles, etc.) cited or consulted in a scholarly work. It's usually found at the end of a research paper, book, or essay.
* The study of books and writing. This is a broader definition encompassing the history, production, and distribution of books.
The term "bibliograph" could be a misspelling or a specialized term within a specific field. If you can provide more context, I can help clarify its meaning.