Missing date of first publication

[G.G.]

Repeat request: Might I trouble a kind librarian to add a date of first publication to 人がつなぐ源氏物語　藤原定家の写本からたどる物語の千年 (I read the paperback edition, ISBN 978-4-02-263104-6). My copy--the first edition--was published on February 25, 2021.　Currently, the book shows up as date of publication "unknown" on my shelves.
If you've time, the Japanese profile of the author (伊井 春樹) might helpfully be combined with the separate English profile (Haruki Ii).
Many thanks in advance for your help! (less) "

[Sandra]

Amazon.co.jp lists both editions as February 10, 2021, however as you've got the book, I've left the paperback as Feb 25.

Added the cover, description from amazon & fixed the truncated isbns.

https://www.goodreads.com/book/show/6...

As that author only publishes in Japanese, I've merged them.

[G.G.]

Sandra wrote: "Amazon.co.jp lists both editions as February 10, 2021, however as you've got the book, I've left the paperback as Feb 25.

Added the cover, description from amazon & fixed the truncated isbns.

htt..."
Wonderful! Thank you so much for taking the time to do this Sandra