Wesselmann, T., & Cappel, K. (2010). Flowers. Kehrer.
Cita Chicago (17th ed.)Wesselmann, Tom, i Katharina Cappel. Flowers. Heidelberg: Kehrer, 2010.
Cita MLA (8th ed.)Wesselmann, Tom, i Katharina Cappel. Flowers. Kehrer, 2010.
Atenció: Aquestes cites poden no estar 100% correctes.