Ouvaroff, S. (1972). Les grands themes. Time-Life.
Cita Chicago (17th ed.)Ouvaroff, Serge. Les Grands Themes. Time-Life, 1972.
Cita MLA (9th ed.)Ouvaroff, Serge. Les Grands Themes. Time-Life, 1972.
Atenció: Aquestes cites poden no estar 100% correctes.