APA (7e ed.) Bronvermelding

(1985). Globe General Services and Security Agency and GGC Marketing Services Unlimited. GGSSA.

Chicago (17e ed.) Bronvermelding

Globe General Services and Security Agency and GGC Marketing Services Unlimited. Pasay City: GGSSA, 1985.

MLA (9e ed.) Bronvermelding

Globe General Services and Security Agency and GGC Marketing Services Unlimited. GGSSA, 1985.

Let op: Deze citaties zijn niet altijd 100% accuraat.