00474nam a2200157Ia 4500003000600000005001700006008004100023020001700064040002500081082003000106100002500136245006800161260002500229300002600254500003600280NORSU20240423081525.0240215s9999    xx            000 0 und d  a97785-8105-7  aNORSU-DumcNORSU-Dum  aGR/Fil/001.42/Ar2/c2/2001  aArdales, Venancio B. 0aBasic Concepts and Methods in RESEARCHcby Venancio B. Ardales   bCONCERNS, Inc.c2001  aii, 288 pages; 22 cm.  aincludes references and  index