APA (7th ed.) Citation

Walzel, O. F. (1912). Henrik Ibsen. Insel-Verlag.

Chicago Style (17th ed.) Citation

Walzel, Oskar F. Henrik Ibsen. Leipzig: Insel-Verlag, 1912.

MLA (8th ed.) Citation

Walzel, Oskar F. Henrik Ibsen. Insel-Verlag, 1912.

Warning: These citations may not always be 100% accurate.