Classification. Philology. Index to languages and dialects in the volumes P-PA, PB-PH, PJ-PM. Printed as manuscript.

Antzeko izenburuak

• Classification. Class P, PJ-PM supplement.
  Argitaratua: (1936)
• Classification. Class P, subclass PJ-PM: Languages and literatures of Asia, Africa, Oceania, America, mixed languages, artificial languages, with supplementary pages.
  Argitaratua: (1956)
• Class P. Subclasses PL-PM. Languages of Eastern Asia, Africa, Oceania, hyperborean, Indian, and artificial languages Library of Congress classification schedules combined with additions and changes through 1988
  Argitaratua: (1989)
• Classification. Class P, P-PA: Philology, linguistic, classical philology, classical literature.
  Argitaratua: (1928)
• Classification. Class P, P-A: Philology, linguistics, classical philology, classical literature (with supplementary pages).
  Argitaratua: (1955)