APA-viite (7. p.)

Hart Abarasi & University of Birmingham. Advanced studies of catalytic upgrading of heavy oils.

Chicago-viite (17. p.)

Hart Abarasi ja University of Birmingham. Advanced Studies of Catalytic Upgrading of Heavy Oils.

MLA-viite (9. p.)

Hart Abarasi ja University of Birmingham. Advanced Studies of Catalytic Upgrading of Heavy Oils.

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