(1993). Workpapers. s.n.
Cita Chicago (17th ed.)Workpapers. S.l: s.n, 1993.
Cita MLA (9th ed.)Workpapers. s.n, 1993.
Atenció: Aquestes cites poden no estar 100% correctes.
Cita APA (7th ed.)
(1993). Workpapers. s.n.
Cita Chicago (17th ed.)Workpapers. S.l: s.n, 1993.
Cita MLA (9th ed.)Workpapers. s.n, 1993.