Sarkar, S. (2005). Einstein's universe: The challenge of dark energy.
Lua i Stíl Chicago (17ú heag.)Sarkar, S. Einstein's Universe: The Challenge of Dark Energy. 2005.
Lua MLA (9ú heag.)Sarkar, S. Einstein's Universe: The Challenge of Dark Energy. 2005.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.