Moltesen, M. c. 2. J. (2012). Perfect partners: The collaboration between Carl Jacobsen and his agent in Rome Wolfgang Helbig in the formation of the Ny Carlsberg Glyptotek 1887 - 1914. Ny Carlsberg Glyptotek.
Chicago-Zitierstil (17. Ausg.)Moltesen, Mette ca. 20./21. Jh. Perfect Partners: The Collaboration Between Carl Jacobsen and His Agent in Rome Wolfgang Helbig in the Formation of the Ny Carlsberg Glyptotek 1887 - 1914. Copenhagen: Ny Carlsberg Glyptotek, 2012.
MLA-Zitierstil (9. Ausg.)Moltesen, Mette ca. 20./21. Jh. Perfect Partners: The Collaboration Between Carl Jacobsen and His Agent in Rome Wolfgang Helbig in the Formation of the Ny Carlsberg Glyptotek 1887 - 1914. Ny Carlsberg Glyptotek, 2012.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.