Lua APA (7ú heag.)

SMEETS, R. (1982). Signs, Symbols & Ornaments. Van Nostrand Reinhold Co.

Lua i Stíl Chicago (17ú heag.)

SMEETS, Rene. Signs, Symbols & Ornaments. Van Nostrand Reinhold Co, 1982.

Lua MLA (8ú heag.)

SMEETS, Rene. Signs, Symbols & Ornaments. Van Nostrand Reinhold Co, 1982.

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