Cita APA (7th ed.)

OCIC, O. (2005). Oil refineries in the 21st century. WILEY-VCH Verlag GmbH.

Cita Chicago (17th ed.)

OCIC, Ozren. Oil Refineries in the 21st Century. Weinheim: WILEY-VCH Verlag GmbH, 2005.

Cita MLA (9th ed.)

OCIC, Ozren. Oil Refineries in the 21st Century. WILEY-VCH Verlag GmbH, 2005.