Lua APA (7ú heag.)

Molland, G. Sign conceptions in mathematics in the Latin Middle Ages: George Molland. [Semiotik, 1].(1997).

Lua i Stíl Chicago (17ú heag.)

Molland, George. "Sign Conceptions in Mathematics in the Latin Middle Ages: George Molland." [Semiotik, 1].(1997) .

Lua MLA (8ú heag.)

Molland, George. "Sign Conceptions in Mathematics in the Latin Middle Ages: George Molland." [Semiotik, 1].(1997), .

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