APA-viite (7. p.)

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

Chicago-viite (17. p.)

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

MLA-viite (8. p.)

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