attset bib1.att

xpath enable

xelm /assembled/basic/names/CASno !:w,!:p,!:s,NAL-call-number:p,Title-key:s
xelm /*/orgs  body-of-text:w
xelm //something Title:w

# Bib-level=1021
xelm /assembled/@org          Bib-level:w,Bib-level:w

xelm /assembled/basic         Title:w
