Cita APA (7th ed.)

Chang, M. I. (2011). Pollution in China. Nova Science Publishers.

Cita Chicago (17th ed.)

Chang, Michael I. Pollution in China. Hauppauge, N.Y.: Nova Science Publishers, 2011.

Cita MLA (9th ed.)

Chang, Michael I. Pollution in China. Nova Science Publishers, 2011.

Atenció: Aquestes cites poden no estar 100% correctes.