ENCYCLOPEDIA ARTICLE WITH AN AUTHOR
Dickinson, Robert E.  “Norman Conquest.” The World Book Encyclopedia. 
      2005.
Author of the Article.  “Title of the article.”  Title of the Encyclopedia.  Date of publication.

ENCYCLOPEDIA ARTICLE WITHOUT AN AUTHOR
"Dinosaurs." New Book of Knowledge. 2005 ed.
Begin your entry with the title of the article. Title of the Encyclopedia.  Date of publication.

AN ANTHOLOGY WITH AN EDITOR RATHER THAN AN  AUTHOR:
Lester, James, ed.  World Stamp Collections.  Boston: Wadsworth, 1998.
 Editor, ed.  Title.  Place of Publication: Publisher, Date.

OTHER REFERENCE BOOKS & BOOKS in SETS
"Lobster."  Aquatic Life.  New York: Marshall Cavendish, c2000.
"Title of the Article."  Title of the set.  Place of publication: Publisher,  Date of publication.