APA (7th ed.) Citation

Günther Just, K., Lohmann Siems, I., & Barlach, E. (1972). Ernst Barlach: 1870-1970. Inter Nationes Bonn Bad Godesberg.

Chicago Style (17th ed.) Citation

Günther Just, Klaus, Isa Lohmann Siems, and Ernst Barlach. Ernst Barlach: 1870-1970. Berlín: Inter Nationes Bonn Bad Godesberg, 1972.

MLA (9th ed.) Citation

Günther Just, Klaus, et al. Ernst Barlach: 1870-1970. Inter Nationes Bonn Bad Godesberg, 1972.