do you have the book "the practice of research in criminologyand criminal justice 5th edition
No, we do not--as a public library we do not usually buy textbooks. However, you might be able to get this via interlibrary loan (we borrow the book for you from another library system somewhere in the country). There is more information about this at http://www.omahalibrary.org/my-library/interlibrary-loan. (Keep in mind that if you are using this for a class, you probably won't be able to keep it for a whole semester--the lending library determines check-out periods and renewals).
I hope this helps!