(1969). Ideas about substance / [by] Albert L. Hammond.
Lua i Stíl Chicago (17ú heag.)Ideas About Substance / [by] Albert L. Hammond. 1969.
Lua MLA (9ú heag.)Ideas About Substance / [by] Albert L. Hammond. 1969.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.