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 aipamenaHG 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 aipamenaHG 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.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.