Johnston, D., & Bush, J. (1998). International oil company financial management in nontechnical language. Tulsa, OK: PennWell.
Παραπομπή Chicago StyleJohnston, Daniel, and James Bush. International Oil Company Financial Management in Nontechnical Language. Tulsa, OK: PennWell, 1998.
Παραπομπή MLAJohnston, Daniel, and James Bush. International Oil Company Financial Management in Nontechnical Language. Tulsa, OK: PennWell, 1998.
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