If an important book that you want to include in your literature review is not owned by your library, your best move would probably be to:

If an important book that you want to include in your literature review is not owned by your library, your best move would probably be to obtain it through interlibrary loan. Interlibrary loan allows you to borrow materials from other libraries that your library does not have in its collection. This is a convenient and efficient way to access the book you need for your research. Obtaining it by asking the library to recall the reference may not be possible if the book is not available in your library's collection. Obtaining it through an online document delivery service may be costly and time-consuming. Citing it anyway for the benefit of the reader would not be appropriate if you do not have access to the book.