Proposal : Update Manga Mashounen B.T. published date

Proposal details

This proposal will make the following change(s):

Update the published date of the manga Mashounen B.T.

Change the published date from :
Start Date :
Day : Unknown
Month : Unknown
Year : Unknown
-
End Date :
Day : Unknown
Month : Unknown
Year : Unknown

to

Start Date :
Day : 20
Month : 9
Year : 1983
-
End Date :
Day : 22
Month : 11
Year : 1983

Based on the following reason: Missing

With the source: https://myanimelist.net/manga/3579/Mashounen_BT