Schwinn, U. (1998). Oracle: Database administration. [S.l.]: [s.n.].
Trích dẫn kiểu ChicagoSchwinn, Ulrike. Oracle: Database Administration. [S.l.]: [s.n.], 1998.
MLA引文Schwinn, Ulrike. Oracle: Database Administration. [S.l.]: [s.n.], 1998.
警告：這些引文格式不一定是100％准確.