Olchondra, R. T. (2015). Shell's solution to resource problems lies in innovation. Philippine Daily Inquirer.
Cita Chicago (17th ed.)Olchondra, Riza T. "Shell's Solution to Resource Problems Lies in Innovation." Philippine Daily Inquirer 2015.
Cita MLA (9th ed.)Olchondra, Riza T. "Shell's Solution to Resource Problems Lies in Innovation." Philippine Daily Inquirer, 2015.
Atenció: Aquestes cites poden no estar 100% correctes.