APA (7th ed.) Citation

Calvino, J., Niesel, W., & Barth, P. (1926). Opera selecta. in aedibus Chr. Kaiser.

Chicago Style (17th ed.) Citation

Calvino, Juan, Wilhelm Niesel, and Peter Barth. Opera Selecta. Monachii: in aedibus Chr. Kaiser, 1926.

MLA (9th ed.) Citation

Calvino, Juan, et al. Opera Selecta. in aedibus Chr. Kaiser, 1926.