(22453488), R. W. P. (2025). Historical Functional Classifications.
Lua i Stíl Chicago (17ú heag.)(22453488), Robert W. Pendergrass. Historical Functional Classifications. 2025.
Lua MLA (9ú heag.)(22453488), Robert W. Pendergrass. Historical Functional Classifications. 2025.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.