O'Sullivan, Elizabethann. Research methods for public administrators / Elizabethann O'Sullivan, Gary R. Rassel, Maureen Berner. - 5th edition. - New York : Pearson Education, Inc., 2010. - xii, 500 pages : illustrations ; 24 cm. Includes bibliographical references and index. ISBN: 0-321-62837-3 Pbk, Bp. Subjects--Topical Terms: Public administration--Research--Methodology. LC Class. No.: JF 1338 O88 2010 CTE