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:

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 entered under the last part of the name; foreign ones under the first part.

Designations are to be added to distinguish writers of the same name from each other.

Prefixes indicating the rank or profession of writers may be added in the heading, when they are part of the usual designation of the writers.

Names of places to be given in the English form. When both an English and a vernacular form are used in English works, prefer the vernacular.