Warren, G. (1955). The Beacon Sandstone: Summary of published work. Royal Society of New Zealand.
Lua i Stíl Chicago (17ú heag.)Warren, G. The Beacon Sandstone: Summary of Published Work. [Wellington: Royal Society of New Zealand, 1955.
Lua MLA (8ú heag.)Warren, G. The Beacon Sandstone: Summary of Published Work. Royal Society of New Zealand, 1955.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.