Varley, E. R. (1968). Sillimanite: Andalusite, kyanite, sillimanite ([1st American ed.].). Chemical Pub. Co.
Lua i Stíl Chicago (17ú heag.)Varley, Ernest Reginald. Sillimanite: Andalusite, Kyanite, Sillimanite. [1st American ed.]. New York: Chemical Pub. Co, 1968.
Lua MLA (9ú heag.)Varley, Ernest Reginald. Sillimanite: Andalusite, Kyanite, Sillimanite. [1st American ed.]. Chemical Pub. Co, 1968.
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