Request for information : coding

I am currently creating a database in order to record the information about Publications, Journalists, Articles, Press releases.

In the form, I would the data (adress, zip code, City and Country of the publication from to appear immediately on the journalist form (adress, zip code, City and Country) on the journalist form when I select the publication name in the scroll down list.

Can someone help me to code ? It is not as simple as it seems

Thanks
Victor
v.mateusdasilva