* [[George J. Klir]], ''[https://books.google.com/books?id=9NHgBwAAQBAJ&printsec=frontcover&dq=%22Facets+of+Systems+Science%22&hl=en&sa=X&ved=0ahUKEwis2LXXiLrjAhUVBs0KHZ83CsoQ6AEIKjAA#v=onepage&q=%22Facets%20of%20Systems%20Science%22&f=false Facets of Systems Science (2nd Edition)]'', Kluwer Academic/Plenum Publishers, 2001. | * [[George J. Klir]], ''[https://books.google.com/books?id=9NHgBwAAQBAJ&printsec=frontcover&dq=%22Facets+of+Systems+Science%22&hl=en&sa=X&ved=0ahUKEwis2LXXiLrjAhUVBs0KHZ83CsoQ6AEIKjAA#v=onepage&q=%22Facets%20of%20Systems%20Science%22&f=false Facets of Systems Science (2nd Edition)]'', Kluwer Academic/Plenum Publishers, 2001. |