Collective Nouns

Lists

Parallel Structure

Numbers,Dates,Times

Phone Numbers

Prepositions

Split Infinitives

That and Which

They're, Their, There

Web Styles

EMU style for 10-digit telephone numbers uses dots (periods) between the sets:

734.487.1849

University style demands dots between seven-digit references. These are appropriate:

487.2483

The 800 number for EMU is exactly the following, with no 1-:

800.GO-TO-EMU