APA

Yaohua F., Guanghua Y., Petroleum University (Beijing), World Petroleum Congress (15th. : 1997 : Beijing), Guanghua Y. & Petroleum University (Beijing).A novel deasphalting process of petroleum residue. : .

Chicago

Yaohua Fan, Guanghua Yang, Petroleum University (Beijing), World Petroleum Congress (15th. : 1997 : Beijing), Guanghua Yang and Petroleum University (Beijing).A novel deasphalting process of petroleum residue. : .

Harvard

Yaohua F., Guanghua Y., Petroleum University (Beijing), World Petroleum Congress (15th. : 1997 : Beijing), Guanghua Y. and Petroleum University (Beijing).A novel deasphalting process of petroleum residue. : .

MLA

Yaohua Fan, Guanghua Yang, Petroleum University (Beijing), World Petroleum Congress (15th. : 1997 : Beijing), Guanghua Yang and Petroleum University (Beijing).: . .