Cita APA (7th ed.)
Ortega, J. L. (2014). Academic search engines: A quantitative outlook. Chandos Publishing.
Cita Chicago (17th ed.)
Ortega, Jos�e Luis. Academic Search Engines: A Quantitative Outlook. Oxford, England: Chandos Publishing, 2014.
Cita MLA (9th ed.)
Ortega, Jos�e Luis. Academic Search Engines: A Quantitative Outlook. Chandos Publishing, 2014.
Atenció: Aquestes cites poden no estar 100% correctes.