APA (7th ed.) Citation

Frailey, L. E. (1942). How to write better business letters. American Technical Society.

Chicago Style (17th ed.) Citation

Frailey, L. E. How to Write Better Business Letters. Chicago: American Technical Society, 1942.

MLA (8th ed.) Citation

Frailey, L. E. How to Write Better Business Letters. American Technical Society, 1942.