APA (7e ed.) Bronvermelding

Yun Ping. (1998). The pollution charge system in China: An economic incentive? Economy and Environment Program for Southeast Asia.

Chicago (17e ed.) Bronvermelding

Yun Ping. The Pollution Charge System in China: An Economic Incentive? Singapore: Economy and Environment Program for Southeast Asia, 1998.

MLA (9e ed.) Bronvermelding

Yun Ping. The Pollution Charge System in China: An Economic Incentive? Economy and Environment Program for Southeast Asia, 1998.