APA

Waugh W. B., Petro-Canadá, World Petroleum Congress (13th. : 1991 : Buenos Aires) & Petro-Canadá.Advanced hydroprocessing of heavy oil and refinery residues. : .

Chicago

Waugh W B, Petro-Canadá, World Petroleum Congress (13th. : 1991 : Buenos Aires) and Petro-Canadá.Advanced hydroprocessing of heavy oil and refinery residues. : .

Harvard

Waugh W. B., Petro-Canadá, World Petroleum Congress (13th. : 1991 : Buenos Aires) and Petro-Canadá.Advanced hydroprocessing of heavy oil and refinery residues. : .

MLA

Waugh W B, Petro-Canadá, World Petroleum Congress (13th. : 1991 : Buenos Aires) and Petro-Canadá.: . .