http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
17 volumes (chiefly diagrams, tables) ; 29 cm.
v. 1-2. Single bed.--v. 3-4. Break in thick bed.--v. 5. Bed flanked by thin high resistivity beds.--v. 6-7. Adjacent beds.--v. 8-9. Multiple beds.--v. 10-12. Single bed--invaded.--v. 13-17. Layered beds in limestone.