Schaub, R. (1998). Traces of yesterday. Waterback.
Cita Chicago (17th ed.)Schaub, Richard. Traces of Yesterday. Owings Mills: Waterback, 1998.
Cita MLA (9th ed.)Schaub, Richard. Traces of Yesterday. Waterback, 1998.
Atenció: Aquestes cites poden no estar 100% correctes.