ignitaries, unless popes or sovereigns, are to be
entered under their surnames.

Sovereigns (other than Greek or Roman), ruling princes, Oriental
writers, popes, friars, persons canonized, and all other persons
known _only_ by their first name, are to be entered under this
first name.

Married women, and other persons who have changed their names,
are to be put under the last well-known form.

A pseudonym may be used instead of the surname (and only a
reference to the pseudonym made under the surname) when an author
is much more known by his false than by his real name. In case of
doubt, use the real name.

A society is to be entered under the first word, not an article,
of its corporate name, with references from any other name by
which it is known, especially from the name of the place where
its headquarters are established, if it is often called by that
name.

REFERENCES.

When an author has been known by more than one name, references
should be inserted from the name or names not to be used as
headings to the one used.

References are also to be made to the headings chosen:
asked for by their titles;

from other striking titles;

from noticeable words in anonymous titles, especially from the
names of subjects of anonymous biographies;

from the names of editors of periodicals, when the periodicals are
generally called by the editor's name;

from the names of important translators (especially poetic
translators) and commentators;

from the title of an ecclesiastical dignitary, when that, and not
the family name, is used in the book catalogued;

and in other cases where a reference is needed to insure the ready
finding of the book.

HEADINGS.

In the heading of titles, the names of authors are to be given in
full, and in their vernacular form, except that the Latin form
may be used when it is more generally known, the vernacular form
being added in parentheses; except, also, that sovereigns and
popes may be given in the English form.

English and French surnames beginning with a prefix (except the
French de and d') are to be recorded under the prefix; in other
languages under the word following.

English compound surnames are to be e