@book{UBHD-1083970, author={Clay, Lucius D.}, publisher={Indiana Univ. Press}, address={Bloomington, Ind.}, year={1974}, pages={XLI, 524 S.}, language={eng}, library={UB [Signatur: 75 B 1029::1] ; SC [Signatur: Sch 5.6.4 Clay 3]}, }