440 Series Traced the Same:

1st indicator:

-- Null condition

2nd indicator:

0-9 Non-filing characters

Subfield codes used:

a Title

n Number of part/section

p Name of part/section (of a work)

v Volume or number

x International Standard Serial Number (ISSN)

Note: subfields n and p are used only following subfield a and preceding subfields x or v.