Multi-volume work as a whole
Author's/Editor's name. Date. Title of Book: Subtitle of Book. Edition. City of Publication (State/country): Publisher. Extent. Notes.
Example
Alkire LG, editor. 2006. Periodical title abbreviations. 16th ed. Detroit (MI): Thompson Gale. 2 vol. Vol. 1, By abbreviation; vol. 2, By title.
Chapter or other part of a book, different authors
Chapter's author's name. Year. Title of chapter. In: Editor's name. Title of book. Edition. City of Publication (State/country): Publisher. Extent. Notes.
Example
Barr, RD, Parrett, WH. 2003. Alternative schooling. In: Guthrie, JW, editor. Encyclopedia of education. 2nd ed. New York (NY): Macmillan Reference USA. Vol. 1.