Izvornik: 1st Duet Book for Little Jacks and Jills. 1st Duet Book for Little Jacks and Jills. Fun with Tom, John, and Bill.
Prijevod: 1. Duet knjiga za malo Jacks i Jills. 1. Duet knjiga za malo Jacks i Jills. FUN s Tomom, JOHN, i Bill. Irene Rodgers.