Stewart, David W.

    Focus groups : theory and practice / David W.Stewart, Prem N.Shamdasani, Dennis W.Rook. 2nd ed.

    Thousand Oaks : SAGE Publications, cop. 2007. XII, 188 s. : il. ; 22 cm.
    (Applied Social Research Methods Series vol. 20)
    (Applied Social Research Methods Series)
    ISBN 978-0-7619-2582-8 (cloth: alk.paper)     ISBN 978-0-7619-2583-5 (pbk.: alk.paper)

   
T.12871        UKD: 303.4/.8=111