@BOOK{lt, AUTHOR = "Tierney, Luke.",
         TITLE = "LISP-STAT: An Object Oriented Environment for 
                   Statistical Computation and Dynamic Graphics",
         PUBLISHER = "John Wiley and Sons",
         ADDRESS = "New York",
         YEAR = "1990"}

@BOOK{hh, AUTHOR = "Good, Phillip.",
        TITLE = "Permutation Tests",
        PUBLISHER = "Springer Verlag" 
        ADDRESS = "New York"       
        YEAR = "1993"}

@BOOK{hh, AUTHOR = "",
        TITLE = "Base Year Sample Design Report",
        PUBLISHER = "National Center for Educational Statistics" 
        ADDRESS = "Washington, D.C."       
        YEAR = "1993"}