Independent analysts and forecasters. (2017). Oil World. ISTA Mielke GmbH.
Cita Chicago Style (17a ed.)Independent analysts and forecasters. Oil World. Hamburg, Alemanha: ISTA Mielke GmbH, 2017.
Cita MLA (8a ed.)Independent analysts and forecasters. Oil World. ISTA Mielke GmbH, 2017.
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