Eldon D. Enger，Bradley F.Smith[著]. (2017). 环境科学：交叉关系学科：a study of interrelationships. 清华大学出版社.
Lua i Stíl Chicago (17ú heag.)Eldon D. Enger，Bradley F.Smith[著]. 环境科学：交叉关系学科：a Study of Interrelationships. 清华大学出版社, 2017.
Lua MLA (8ú heag.)Eldon D. Enger，Bradley F.Smith[著]. 环境科学：交叉关系学科：a Study of Interrelationships. 清华大学出版社, 2017.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.