Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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