@book{UBHD-1124171, edition={2. Aufl.}, publisher={Beltz}, address={Weinheim}, year={1962}, pages={134 S.}, language={ger}, number={ARRAY(0x558c0aaa25e8)}, series={Kleine p{\"a}dagogische Texte}, library={UB [Signatur: 62 A 1245::1]}, }