Gmelin Handbuch der anorganischen Chemie. (OCLC #802031)

With all these types of enumeration on the volume, how should this series be arranged and labeled? By Band/Teil? Should supplements be grouped with their elements? If so, how to arrange elements? (by Periodic table order?)

In our collection, this volume has the description:

B; s.n.13; supp; pt.6; 1975

Volumes in this set are labeled by the element symbol (in this case B = Boron) and also the Gmelin system numbers, where Boron has number 13. It is part (Teil) 6 of a supplemental series (Ergänzungswerk), published in 1975.