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.
Citace podle Chicago (17th ed.)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.
Citace podle MLA (9th ed.)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.
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