APA-viite (7. p.)

Palmer, B. W. (1988). Guide and index to the papers of Charles Sumner. Chadwyck-Healey.

Chicago-viite (17. p.)

Palmer, Beverly Wilson. Guide and Index to the Papers of Charles Sumner. Alexandria, VA: Chadwyck-Healey, 1988.

MLA-viite (8. p.)

Palmer, Beverly Wilson. Guide and Index to the Papers of Charles Sumner. Chadwyck-Healey, 1988.