Process Beginnings Endings  Persuasion Paragraphs Tone Flow Parallelism Inflation Conciseness Verbs Clutter Conventions	13.1.4 Commas to Enclose
	Use a pair of commas or a comma and a period to enclose certain elements. When enclosing, do not put down one mark and forget the other. Use a pair of commas or a comma and a period to enclose these: Titles such as "M.D.,'' "PhD,'' or Jr.'' Names of states Years in dates Words of direct address Inserted sentence elements Parenthetical elements Appositives Nonidentifying (nonrestrictive) elements
	Courtesy of John Mercer Associates, www.MercerWriting.com ==>Guidelines ==>Conventions ==>Punctuation