APA (7th ed.) Citation

Undset, S. (1931). The WILD orchid (3a ed.). Alfred A. Knopf.

Chicago Style (17th ed.) Citation

Undset, Sigrid. The WILD Orchid. 3a ed. New York: Alfred A. Knopf, 1931.

MLA (9th ed.) Citation

Undset, Sigrid. The WILD Orchid. 3a ed. Alfred A. Knopf, 1931.