توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

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.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

Perley, Clarence Warner, و 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.

توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)

Perley, Clarence Warner, و 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.