Salvador, M. R. (2012). Measuring the efficiency of selected travel agencies in Metro Manila: A frontier approach [thesis abstract]. Ad Veritatem.
Chicago-Zitierstil (17. Ausg.)Salvador, Magnolia Rafael. "Measuring the Efficiency of Selected Travel Agencies in Metro Manila: A Frontier Approach [thesis Abstract]." Ad Veritatem 2012.
MLA-Zitierstil (9. Ausg.)Salvador, Magnolia Rafael. "Measuring the Efficiency of Selected Travel Agencies in Metro Manila: A Frontier Approach [thesis Abstract]." Ad Veritatem, 2012.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.