Walliams, D., & Blake, i. Q. (2017). Sr. Pivete. Porto Editora.
Lua i Stíl Chicago (17ú heag.)Walliams, David, agus il. Quentin Blake. Sr. Pivete. Porto Editora, 2017.
Lua MLA (8ú heag.)Walliams, David, agus il. Quentin Blake. Sr. Pivete. Porto Editora, 2017.
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