A colleague is assembling a book for publication, and the publisher instructions state that the book should use short form end-notes, and a full bibliography for each chapter. The book concerns China, so many of the sources have authors who are surnamed "Li" and "Wang" and "Liu" etc. because these are very common surnames in China. For example, about 10% of China has a surname Wang.
For all repeated surnames, should short form end notes include full names? Or are just surnames enough?
Endnote option 1
1 Li, Short Title ABC, 12-15.
2 Li, Quick Title DEC, 111-132.
Endnote option 2
1 Li Han, Short Title ABC, 12-15.
2 Li Ma, Quick Title DEC, 111-132.
Li, Han. Short Title ABC: An introduction. Chicago: University of Chicago Press, 2000.
Li, Ma. Quick Title DEC: For Experts. New York: University of New York Press, 1987.
In my opinion, the Chicago Manual of Style is ambiguous. It says in 14.27 Short Form For Authors's Names says the following:
Only the last name of the author, or of the editor or translator if given first in the full reference, is needed in the short form. Full names or initials are included only when authors with the same last name must be distinguished from one another. Such abbreviations as ed. or trans. following a name in the full reference are omitted in subsequent references. If a work has two or three authors, give the last name of each; for more than three, the last name of the first author followed by et al.
Focusing in the statement "Full names or initials are included only when authors with the same last name must be distinguished from one another. "
Does this only refer to when there are two authors of the same book who have the same name, or any author whose name is reapeated?