How to get the ISBN No. for a book ?

The Book I search, has been published in 1986. How to find the relative ISBN no. for that book ?|||Try searching by title in the Library of Congress online catalog at http://catalog.loc.gov/.|||All the major online book retailers post the ISBN number for books that they sell. Just check out Powells, Barnes and Noble, Amazon or Borders and I am sure you will find what you are looking for.|||Go to Amazon.com and make sure you're searching under books. Then type the name of the book. It will give you everything you'll need to know.