Johnson, T., Liu, F., & Newfarmer, R. S. (1997). Clear water, blue skies: China's environment in the new century. World Bank.
Citazione stile Chigago Style (17a edizione)Johnson, Todd, Feng Liu, e Richard S. Newfarmer. Clear Water, Blue Skies: China's Environment in the New Century. Washington, D.C: World Bank, 1997.
Citatione MLA (9a ed.)Johnson, Todd, et al. Clear Water, Blue Skies: China's Environment in the New Century. World Bank, 1997.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.