@book{UBHD-1255547, author={Westermann, William Linn}, title={Upon slavery in Ptolemaic Egypt}, publisher={Columbia Univ. Press}, address={New York}, year={1929}, pages={69 S.}, language={eng}, number={ARRAY(0x5627fdcf5590)}, series={Columbia papyri}, keywords={{\"A}gypten <Altertum> / Sklaverei / Geschichte 303 v. Chr.-30 v. Chr.}, library={UB [Signatur: C 4692-9 Folio::[1]] ; AG [Signatur: VIII A 1459] ; GR [Signatur: <GR> R 5523]}, }