APA (7th ed.) Citation

Agatha, S. (1939). A study of the first four novels of Texas. The author.

Chicago Style (17th ed.) Citation

Agatha, Sister. A Study of the First Four Novels of Texas. Washington, D. C.: The author, 1939.

MLA (9th ed.) Citation

Agatha, Sister. A Study of the First Four Novels of Texas. The author, 1939.