Yen, T. F. (2007). Chemical processes for environmental engineering. Imperial college.
Čikaški stil citiranjaYen, Teh Fu. Chemical Processes for Environmental Engineering. London: Imperial college, 2007.
MLA način citiranjaYen, Teh Fu. Chemical Processes for Environmental Engineering. Imperial college, 2007.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.