@book{UBHD-1020591, author={Kerlinger, Fred N.}, editor={Conrad, Wolfgang}, publisher={Beltz}, address={Weinheim}, year={1975}, pages={576 S}, language={ger}, isbn={3-407-18292-9 and 978-3-407-18292-0}, number={ARRAY(0x55ddd992e010)}, series={Beltz-Studienbuch}, library={EW [Signatur: D I 75.1::I] ; WS [Signatur: WS/MR 6700 K39-1] ; WT [Signatur: S Lca 297::1]}, }