Singapore Science Centre. (1973). Singapore Science Centre.
Lua i Stíl Chicago (17ú heag.)Singapore Science Centre. Singapore Science Centre. [Singapore, 1973.
Lua MLA (8ú heag.)Singapore Science Centre. Singapore Science Centre. 1973.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.