Lammers, William J, Fundamentals of behavioral research /William J. Lammers, Pietro Badia. - first edition. - Australia ; Belmont, California : Thomson/Wadsworth, (c)2005. - xxi, 352 pages ; 25 cm. ISBN: 9780534630690 LCCN: 2004109300 LC Class. No.: BF76 / .F863 2005 BF76