APA-viite (7. p.)

Estupigan, R. (1999). The 7 C's of wise shopping. Manila Bulletin.

Chicago-viite (17. p.)

Estupigan, Ruth. "The 7 C's of Wise Shopping." Manila Bulletin 1999.

MLA-viite (9. p.)

Estupigan, Ruth. "The 7 C's of Wise Shopping." Manila Bulletin, 1999.