Rowland, I. D. (2005). The Roman garden of Agostino Chigi: The thirteenth Gerson lecture, held in memory of Horst Gerson (1907 - 1978) in the aula of the University of Groningen on the 17th of November 2005. The Gerson Lectures Foundation.
Chicago-Zitierstil (17. Ausg.)Rowland, Ingrid Drake. The Roman Garden of Agostino Chigi: The Thirteenth Gerson Lecture, Held in Memory of Horst Gerson (1907 - 1978) in the Aula of the University of Groningen on the 17th of November 2005. Groningen: The Gerson Lectures Foundation, 2005.
MLA-Zitierstil (9. Ausg.)Rowland, Ingrid Drake. The Roman Garden of Agostino Chigi: The Thirteenth Gerson Lecture, Held in Memory of Horst Gerson (1907 - 1978) in the Aula of the University of Groningen on the 17th of November 2005. The Gerson Lectures Foundation, 2005.