Classification. Class P, subclasses P-PM supplement Index to languages and dialects.

Xehetasun bibliografikoak
Egile korporatiboa: U. S. Library of Congress. Subject Cataloging Division, Library of Congress. Classification Division
Formatua: Liburua
Hizkuntza:English
Argitaratua: Washington [U. S. Government Printing Office] 1957.
Edizioa:Second edition.
Gaiak: