MLA

Johst, Hanns, 1890-. Komödie am Klavier : Komödie. c1928.. https://collections.library.yale.edu/catalog/2041353.

APA, 6th edition

Johst, Hanns, 1890-. (c1928.)[Komödie am Klavier : Komödie]. https://collections.library.yale.edu/catalog/2041353.