Reference for Genesis 11:20

וַיְחִ֣י רְע֔וּ שְׁתַּ֥יִם וּשְׁלֹשִׁ֖ים שָׁנָ֑ה וַיּ֖וֹלֶד אֶת־שְׂרֽוּג׃

And Reu lived two and thirty years, and begot Serug.

Jastrow

BDB

BDB