Cita APA (7th ed.)

Vulpius, W., Weilguny, H., & Piana, T. (1957). Das Schillerhaus in Weimar (o.A.).

Cita Chicago (17th ed.)

Vulpius, Wolfgang, Hedwig Weilguny, i Theo Piana. Das Schillerhaus in Weimar. o.A. Weimar, 1957.

Cita MLA (8th ed.)

Vulpius, Wolfgang, et al. Das Schillerhaus in Weimar. o.A. 1957.