(2019). Year Book & Infopedia 2020 (2019.). Hachette Book.
Cita Chicago (17th ed.)Year Book & Infopedia 2020. 2019. Hachette Book, 2019.
Cita MLA (9th ed.)Year Book & Infopedia 2020. 2019. Hachette Book, 2019.
Atenció: Aquestes cites poden no estar 100% correctes.