Ruddle, K., & Wu, C. (1983). Land resources of the People's Republic of China. The United Nations University.
Lua i Stíl Chicago (17ú heag.)Ruddle, Kenneth, agus Chuan-chun Wu. Land Resources of the People's Republic of China. Tokyo, Japan: The United Nations University, 1983.
Lua MLA (9ú heag.)Ruddle, Kenneth, agus Chuan-chun Wu. Land Resources of the People's Republic of China. The United Nations University, 1983.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.