奥姆 & 王晶晶. (2011). 垃圾与回收: Rubbish and recycling. 中国环境科学出版社.
Dyfyniad Arddull Chicago奥姆 and 王晶晶. 垃圾与回收: Rubbish and Recycling. 中国环境科学出版社, 2011.
Dyfyniad MLA奥姆 and 王晶晶. 垃圾与回收: Rubbish and Recycling. 中国环境科学出版社, 2011.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.