APA

Zu D., Long J., Research Institute of Petroleum Processing (China), World Petroleum Congress (15th. : 1997 : Beijing), Long J. & Research Institute of Petroleum Processing (China).Optimization of heavy oil upgrading process with non-catalytic refining technology. : .

Chicago

Zu Deguang, Long Jun, Research Institute of Petroleum Processing (China), World Petroleum Congress (15th. : 1997 : Beijing), Long Jun and Research Institute of Petroleum Processing (China).Optimization of heavy oil upgrading process with non-catalytic refining technology. : .

Harvard

Zu D., Long J., Research Institute of Petroleum Processing (China), World Petroleum Congress (15th. : 1997 : Beijing), Long J. and Research Institute of Petroleum Processing (China).Optimization of heavy oil upgrading process with non-catalytic refining technology. : .

MLA

Zu Deguang, Long Jun, Research Institute of Petroleum Processing (China), World Petroleum Congress (15th. : 1997 : Beijing), Long Jun and Research Institute of Petroleum Processing (China).: . .