Philips Research Laboratories. (1978). Philips Journal of Research. Elsevier Science.
Lua i Stíl Chicago (17ú heag.)Philips Research Laboratories. Philips Journal of Research. Eindhoven, Holanda: Elsevier Science, 1978.
Lua MLA (8ú heag.)Philips Research Laboratories. Philips Journal of Research. Elsevier Science, 1978.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.