If there is no chief source of information
(for example, a book without a title page),
supply a title proper (in this order of
preference) from the rest of the bibliographical
resource, from its accompanying material, or
from elsewhere (for example, a reference source).
If no title can be found anywhere, make up a
brief descriptive title yourself. Give
a supplied or made-up title in square brackets
and make a note (see rule
7B5).
