Gullón, R. Symbolism and modernism: Ricardo Gullón. The symbolist movement in the literature of European languages.(1982).
Lua i Stíl Chicago (17ú heag.)Gullón, Ricardo. "Symbolism and Modernism: Ricardo Gullón." The Symbolist Movement in the Literature of European Languages.(1982) .
Lua MLA (8ú heag.)Gullón, Ricardo. "Symbolism and Modernism: Ricardo Gullón." The Symbolist Movement in the Literature of European Languages.(1982), .
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