Trease, G., & Cavalheiro, i. P. (1987). O trovão de Valmy. Caminho.
Lua i Stíl Chicago (17ú heag.)Trease, Geoffrey, agus il. Pedro Cavalheiro. O Trovão De Valmy. Caminho, 1987.
Lua MLA (8ú heag.)Trease, Geoffrey, agus il. Pedro Cavalheiro. O Trovão De Valmy. Caminho, 1987.
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