When an edition other than the first is cited, the number or description of the edition follows the title.
Please note that Chicago now omits the place of publication for books published after 1900 (see the Manual, 14.30). For books published before 1900, they recommend using the place of publication instead of the publisher itself, as it is of greater interest (see the Manual, 14.31).
Example 1 – Numbered Edition
N: 1. Mary Lynn Rampolla, A Pocket Guide to Writing in History, 6th ed. (Bedford/St. Martin's, 2010), 13.
B: Rampolla, Mary Lynn. A Pocket Guide to Writing in History. 6th ed. Bedford/St. Martin's, 2010.
Example 2 – Revised Edition
N: 1. Florence Babb, Between Field and Cooking Pot: The Political Economy of Marketwomen in Peru, rev. ed. (University of Texas Press, 1989), 100.
B: Babb, Florence. Between Field and Cooking Pot: The Political Economy of Marketwomen in Peru. Rev. ed.
University of Texas Press, 1989.
If citing a reprint or modern edition of a work, see the Manual, 14.16.