APA (7e ed.) Bronvermelding

Independent analysts and forecasters. (2017). Oil World. ISTA Mielke GmbH.

Chicago (17e ed.) Bronvermelding

Independent analysts and forecasters. Oil World. Hamburg, Alemanha: ISTA Mielke GmbH, 2017.

MLA (8e ed.) Bronvermelding

Independent analysts and forecasters. Oil World. ISTA Mielke GmbH, 2017.

Let op: Deze citaties zijn niet altijd 100% accuraat.