MLA

Format:

Author Last, First. Letter. Newspaper Name Day Month Year of Publication:
          page number. Print.

[Note: See the entry on citing Articles from a Printed Newspaper for more information.]

Sample Citation:

Davies, Deborah D. Letter. San Francisco Chronicle 16 May 2005: B4. Print.

Sample In-Text Reference:

(Davies B4)

See the entry on citing "Articles from a Printed Newspaper" for more information, or see page 146 in the MLA Handbook, 7th edition.
 

APA

The 6th edition of the Publication Manual of the American Psychological Association does not include a format for citing letters to the editor. For more information, see page 11 in the Manual.
 

Chicago

(Notes)
 

Letters published in daily newspapers are rarely cited in Chicago style, although these references may be included in footnotes, endnotes, or within the text (see p. 700-01 in The Chicago Manual of Style, 15th ed).  The following is an example of a note for a letter to the editor.

Format:

          Note number. Author First Last, letter to the editor, Newspaper Name, Month Day, Year of Publication.

Sample Note:

          22. Deborah D. Davies, letter to the editor, San Francisco Chronicle,
May 16, 2005.
 

Chicago

(Author-Date)

 

Letters published in daily newspapers are rarely cited in Chicago style, although these references may be included within the text.  For more information, see pages 700-01 in The Chicago Manual of Style, 15th ed.

ASA

 

The ASA Style Guide, Third ed., does not include suggestions for citing a letter to an editor. 
 

Turabian

(Notes)
 

[Note: When using Turabian notes style, articles should be included as notes as opposed to bibliographic citations.  For more information on citing newspaper items in notes style, see Kate L. Turabian's A Manual for Writers, 7th ed. p. 186-188.]

Format:

          Note number. Author First Last, letter to the editor, Newspaper Name, Month Day, Year of Publication.

Sample Note:

          22. Deborah D. Davies, letter to the editor, San Francisco Chronicle,
May 16, 2005.

For more information, see page 188 in the Turabian Manual, 7th edition.
 

Turabian

(Author-Date)

Format:

Author Last, First. Year of Pub. Letter to the editor. Newspaper Name. Month Day.

Sample Citation:

Davies, Deborah D. 2005. Letter to the editor. San Francisco Chronicle. May 16.

Sample In-Text Reference:

(Davies 2005)

For more information see page 254 in the Turabian Manual, 7th edition.