Guthrie, Gerard.

    Basic research methods : an entry to social science research / Gerard Guthrie. 4th print.

    Los Angeles [etc.] : SAGE, 2012. XVI, 221 s. : il. ; 24 cm.
    ISBN 978-81-321-0457-5 (PB)

   
T.15868        UKD: 303.4/.8=111