Cita APA (7a ed.)
The Penn Library Collections at 250: From Franklin to the web.
Cita Chicago Style (17a ed.)
The Penn Library Collections at 250: From Franklin to the Web.
Cita MLA (9a ed.)
The Penn Library Collections at 250: From Franklin to the Web.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.