Cita APA (7a ed.)
Pappas, T. The Adventures of Penrose: The Mathematical Cat. Wide World/Tetra.
Cita estilo Chicago (17a ed.)
Pappas, Theoni. The Adventures of Penrose: The Mathematical Cat. California, EUA: Wide World/Tetra.
Cita MLA (9a ed.)
Pappas, Theoni. The Adventures of Penrose: The Mathematical Cat. Wide World/Tetra.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.