Vergara, R. B. (2001). On-line grocery shopping vs traditional supermarketing. Manila Times.
Cita Chicago Style (17a ed.)Vergara, Ricky B. "On-line Grocery Shopping Vs Traditional Supermarketing." Manila Times 2001.
Cita MLA (9a ed.)Vergara, Ricky B. "On-line Grocery Shopping Vs Traditional Supermarketing." Manila Times, 2001.
Precaución: Estas citas no son 100% exactas.