俞晓英. (2012). 生态学: Ecology. 人民武警出版社.
Lua i Stíl Chicago (17ú heag.)俞晓英. 生态学: Ecology. 人民武警出版社, 2012.
Lua MLA (8ú heag.)俞晓英. 生态学: Ecology. 人民武警出版社, 2012.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.
Lua APA (7ú heag.)