revision preference src: Century 21 Productions became financially over-stretched. Within a few short months, Century 21 Productions had disbanded Century 21 Productions' three warehouse-sized studios on the Slough Trading Estate, and in June 1969 the entire staff of Century 21 Publishing were given a month's notice. <SEP> tgt: Century 21 Productions became financially over-stretched and within a few short months, they had disbanded their three warehouse-sized studios on the Slough Trading Estate, and in June 1969 the entire staff of Century 21 Publishing were given a month's notice.