Brewer, John Multimedtod research : a synthesis of styles / John Brewer and Albert Hunter - London : Sage Publications , 1989 - 209p. ; 22 cm. - (Sage library of social research ; 175) . Includes index ISBN: 0803930771 Subjects--Topical Terms: Ciencias sociales--- Investigación LC Class. No.: H 62 / B658 1989