(1980). Quantum theory and gravitation. Academic.
Lua i Stíl Chicago (17ú heag.)Quantum Theory and Gravitation. New York: Academic, 1980.
Lua MLA (9ú heag.)Quantum Theory and Gravitation. Academic, 1980.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.