(1975). The study of time II. Springer-Verlag.
Lua i Stíl Chicago (17ú heag.)The Study of Time II. Berlin: Springer-Verlag, 1975.
Lua MLA (9ú heag.)The Study of Time II. Springer-Verlag, 1975.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.