(1985). Globe General Services and Security Agency and GGC Marketing Services Unlimited. GGSSA.
Chicagoスタイル(17版)引用形式Globe General Services and Security Agency and GGC Marketing Services Unlimited. Pasay City: GGSSA, 1985.
MLA(9版)引用形式Globe General Services and Security Agency and GGC Marketing Services Unlimited. GGSSA, 1985.
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