Engel, Rafael J.

    Fundamentals of social work research / Rafael J. Engel, Russell K Schutt.
    Los Angeles [etc.] : SAGE, cop. 2010. XVI, 395 s. : il. ; 23 cm.
   
Rev. ed. of: The practice of research in social work, 2nd ed., cop. 2009.

    ISBN 978-1-4129-5416-7

   
T.17627        UKD: 303:364](075.8)=111