Cita APA (7th ed.)

(2008). Metadata / Marcia Lei Zeng and Jian Qin.

Cita Chicago (17th ed.)

Metadata / Marcia Lei Zeng and Jian Qin. 2008.

Cita MLA (9th ed.)

Metadata / Marcia Lei Zeng and Jian Qin. 2008.

Atenció: Aquestes cites poden no estar 100% correctes.