The locations aren't for specific letters; you will find letters in the correct order regardless of where you search for each one. (primagames.com)
I have since revised it, meaning I now write specific letters for each specific job for which I apply, as opposed to a less personal form letter. (careerdigital.com)
If you live in a large, urban area, you might figure the total of listings for a handful of specific letters rather than for the entire phone book. (educationworld.com)