Twin block functional therapy :
Clark, William J., 1937-
Twin block functional therapy : applications in dentofacial orthopaedics / William J. Clark ; with contributions from Gary G. Baker ... [et al.] ; foreword by T. Graber ; illustrated by Frank Dingwall. - 2nd ed. - Edinburgh : Mosby, c2002. - xv, 366 p. : ill. (chiefly col.) ; 28 cm.