APA (7th ed.) Citation

Knowles, M. W. (1939). The masked rider (New 1939 ed.). Albert Whitman.

Chicago Style (17th ed.) Citation

Knowles, Mabel Winifred. The Masked Rider. New 1939 ed. Chicago: Albert Whitman, 1939.

MLA (9th ed.) Citation

Knowles, Mabel Winifred. The Masked Rider. New 1939 ed. Albert Whitman, 1939.