HG 8220 P6 P55. (1970). Information primer on Presidential Decree 1146 (revised Government Service Insurance Act of 1977) and other benefits with white-collar exercise guide (Revised ed.). GSIS.
Chicago Style (17. basım) AtıfHG 8220 P6 P55. Information Primer on Presidential Decree 1146 (revised Government Service Insurance Act of 1977) and Other Benefits with White-collar Exercise Guide. Revised ed. [Manila: GSIS, 1970.
MLA (9th ed.) AtıfHG 8220 P6 P55. Information Primer on Presidential Decree 1146 (revised Government Service Insurance Act of 1977) and Other Benefits with White-collar Exercise Guide. Revised ed. GSIS, 1970.
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