Lua APA (7ú heag.)

Siniscalchi, V., & Antunes, M. A. (2020). Sing up to English! New edition: Student's book. Richmond.

Lua i Stíl Chicago (17ú heag.)

Siniscalchi, Valéria, agus Ma Alice Antunes. Sing Up to English! New Edition: Student's Book. Buenos Aires: Richmond, 2020.

Lua MLA (9ú heag.)

Siniscalchi, Valéria, agus Ma Alice Antunes. Sing Up to English! New Edition: Student's Book. Richmond, 2020.

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