Class works according to their subject matter.
Unless instructions to the contrary are printed in the schedules, class a work by its specific subject, not by its form under a broader topic. Within a given topical area, class by subject, ignoring form unless form captions have been established under the subject. If no number for the specific form of the work being cataloged has been established in the schedules under the subject, see F 195, sec. Within a given topical area, if a choice must be made between classing by specific subject and classing by place, prefer classification by the subject, unless instructions to the contrary exist or unless precedent, as reflected in the shelflist, clearly indicates otherwise. If no clear precedent exists, record any decision to class by place rather than by subject by adding notes to the schedule.