New Revised Standard Version
He had thirty sons. He gave his thirty daughters in marriage outside his clan and brought in thirty young women from outside for his sons. He judged Israel seven years.

Contemporary English Version
He had 30 daughters and 30 sons, and he let them all marry outside his clan. Ibzan was a leader for seven years,

New American Bible
He had thirty sons and thirty daughters whom he gave in marriage outside the family, while bringing in thirty wives for his sons from outside the family. He judged Israel for seven years.

Douay-Rheims Bible
He had thirty sons, and as many daughters, whom he sent abroad, and gave to husbands, and took wives for his sons, of the same number, bringing them into his house. And he judged Israel seven years:

He had thirty sons, and as many daughters, whom he sent abroad, and gave to husbands, and took wives for his sons, of the same number, bringing them into his house. And he judged Israel seven years:

Judges 12:14 And he had forty sons, and of them thirty grandsons, mounted upon seventy ass colts, and he judged Israel eight years:

Judges 10:4 Having thirty sons, that rode on thirty ass colts, and were princes of thirty cities, which from his name were called Havoth Jair, that is, the towns of Jair, until this present day, in the land of Galaad.