APA (7th ed.) Citation

Heller, O. (1912). Henrik Ibsen; plays and problems. Houghton Mifflin company.

Chicago Style (17th ed.) Citation

Heller, Otto. Henrik Ibsen; Plays and Problems. Boston and New York: Houghton Mifflin company, 1912.

MLA (8th ed.) Citation

Heller, Otto. Henrik Ibsen; Plays and Problems. Houghton Mifflin company, 1912.