Cita APA (7a ed.)
Bard, G. V. Sage for Undergraduates. American Mathematical Society.
Cita estilo Chicago (17a ed.)
Bard, Gregory V. Sage for Undergraduates. Providence, EUA: American Mathematical Society.
Cita MLA (9a ed.)
Bard, Gregory V. Sage for Undergraduates. American Mathematical Society.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.