WEB
(i)
20 The sons of Judah after their families were: of Shelah, the family of the Shelanites; of Perez, the family of the Perezites; of Zerah, the family of the Zerahites.
21 The sons of Perez were: of Hezron, the family of the Hezronites; of Hamul, the family of the Hamulites.