Library of Congress. Classification Division, Martel, C., Schmidt, A. F. W., Perley, C. W., & MacNair, M. W. (1916). Classification. Government Printing Office.
Lua i Stíl Chicago (17ú heag.)Library of Congress. Classification Division, Charles Martel, A. F. W. Schmidt, Clarence W. Perley, agus Mary Wilson MacNair. Classification. Washington: Government Printing Office, 1916.
Lua MLA (8ú heag.)Library of Congress. Classification Division, et al. Classification. Government Printing Office, 1916.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.