APA-ийн эшлэл(7 дахь хэвлэлт)

Perley, C. W., & Voegelein, L. B. (1936). Classification. Philology. Index to languages and dialects in the volumes P-PA, PB-PH, PJ-PM. Printed as manuscript. U. S. Government Printing Office.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Perley, Clarence Warner, ба Lily Belle Voegelein. Classification. Philology. Index to Languages and Dialects in the Volumes P-PA, PB-PH, PJ-PM. Printed as Manuscript. Washington: U. S. Government Printing Office, 1936.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Perley, Clarence Warner, ба Lily Belle Voegelein. Classification. Philology. Index to Languages and Dialects in the Volumes P-PA, PB-PH, PJ-PM. Printed as Manuscript. U. S. Government Printing Office, 1936.