APA (7th ed.) Citation

Kells, C. E. (1926). Three score years and nine. C. Edmund Kells.

Chicago Style (17th ed.) Citation

Kells, C. Edmund. Three Score Years and Nine. New Orleans: C. Edmund Kells, 1926.

MLA (8th ed.) Citation

Kells, C. Edmund. Three Score Years and Nine. C. Edmund Kells, 1926.