Sinag-tala. (1978). Sinag-tala executive marketing factbook: Philippines, Southeast Asia (2nd ed.). Sinag-tala Pub.
Chicago (17e ed.) BronvermeldingSinag-tala. Sinag-tala Executive Marketing Factbook: Philippines, Southeast Asia. 2nd ed. Manila: Sinag-tala Pub, 1978.
MLA (9e ed.) BronvermeldingSinag-tala. Sinag-tala Executive Marketing Factbook: Philippines, Southeast Asia. 2nd ed. Sinag-tala Pub, 1978.
Let op: Deze citaties zijn niet altijd 100% accuraat.