The Tokyo trial : recollections and perspectives from China / editor, Center for the Tokyo Studies of Shanghai Jiao Tong University. (OCLC #931081068)
RDA 2.8.6.6 on what to do when the Date of Publication is not identified says to supply the date or approximate date of publication; there is no provision for recording a phrase like “[date of publication no identified]” or similar.
This volume had no date for publication, copyright, distribution, manufacture, and neither publisher mentions the book on the web site, so we looked to the content to determine an approximate date.
One of the chapters includes a brief biography of Ni Zhengyu including the fact that he passed away in 2003. This was the latest date we found, so we recorded it as:
[not before 2003]