Staubach, S. (2013). Clay: The history and evolution of humankind's relationship with earth's most primal element (First University Press of New England edition.). University Press of New England.
Lua i Stíl Chicago (17ú heag.)Staubach, Suzanne. Clay: The History and Evolution of Humankind's Relationship with Earth's Most Primal Element. First University Press of New England edition. Hanover [New Hampshire]: University Press of New England, 2013.
Lua MLA (9ú heag.)Staubach, Suzanne. Clay: The History and Evolution of Humankind's Relationship with Earth's Most Primal Element. First University Press of New England edition. University Press of New England, 2013.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.