Cita APA (7a ed.)

University of Pittsburgh. University Library System & University of Pittsburgh. Press. (2016). Ledger. University Library System, University of Pittsburgh as part of the D-Scribe Digital Publishing Program.

Cita Chicago Style (17a ed.)

University of Pittsburgh. University Library System y University of Pittsburgh. Press. Ledger. Pittsburgh, PA: University Library System, University of Pittsburgh as part of the D-Scribe Digital Publishing Program, 2016.

Cita MLA (9a ed.)

University of Pittsburgh. University Library System y University of Pittsburgh. Press. Ledger. University Library System, University of Pittsburgh as part of the D-Scribe Digital Publishing Program, 2016.