If the number of physical volumes differs from the number of bibliographic volumes or if edition statements, dates etc. are needed, included in parentheses at end of title or statement of responsibility (work is The Cambridge ancient history, .b11906212):
505 1# v. 1, pt. 1. Prolegomena and prehistory / edited by I.E.S.
Edwards, C.J. Gadd, N.G.L. Hammond (3rd ed.) — v. 1, pt. 2. Early history of
the Middle East / edited by I.E.S. Edwards, C.J. Gadd, N.G L. Hammond (3rd ed.)
— v. 2, pt. 1. History of the Middle East and the Aegean Region c. 1800-1380
B.C. / edited by I.E.S. Edwards … [et al.] (3rd ed.) — v. 2, pt. 2. History
of the Middle East and the Aegean Region, c. 1380-1000 B.C. / edited by I.E.S.
Edwards … [et al.] (3rd ed.) — v. 3, pt.1. The prehistory of the Balkans;
and the Middle East and the Aegean world, tenth to eighth centuries B.C. /
edited by John Boardman … [et al.] (2nd ed.) — v. 3, pt. 2. The Assyrian and
Babylonian empires and other states of the Near East, from the eighth to the
sixth centuries, B.C. / edited by John Boardman … [et al.] (2nd ed.) — v. 13.
The Late Empire, A.D. 337-425 / edited by Averil Cameron, Peter Garnsey
Special case
If there is no separate title for one or more volumes:
505 0# v. 1. [without special title] – v. 2. The later years. (LC-PCC PS for 25.1.1.3)