周国强 & 张青. (2010). 环境保护与可持续发展概论: Introduction to the environmental protection and sustainable development. 中国环境科学出版社.
Čikaški stil citiranja (17. izdanje)周国强 i 张青. 环境保护与可持续发展概论: Introduction to the Environmental Protection and Sustainable Development. 中国环境科学出版社, 2010.
MLA način citiranja (8. izdanje)周国强 i 张青. 环境保护与可持续发展概论: Introduction to the Environmental Protection and Sustainable Development. 中国环境科学出版社, 2010.
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