00274nam a2200085Ia 4500008004100000100001900041245006400060260004600124300001800170180205s9999    xx            000 0 und d  aDavid, Fely P.  aUndestanding and doing research:ba hand book for beginners  aIlo-Ilo CitybPanorama printing INCc2002  aii, 197 pages