TY - `BOOK` TI - Research methods ET - 2. ed. PB - Addison-Wesley CY - Reading, Mass. PY - 1968 LA - eng SE - XV, 819 S. N1 - Literaturangaben SN - 0-201-04263-0 SN - 978-0-201-04263-4 CN - 74 B 4889::2 CN - A Nma 1.2::II CN - <PI> 410 Lin 2::2 CN - PS 30,7 CN - WS/CV 1000 L754(2)-2 AN - UBHD-1097334 ER -