Sibal, J. A. R. (1994). The Constitution of the Republic of the Philippines, 1987 (2nd ed.). Central Professional Books.
Citace podle Chicago (17th ed.)Sibal, Jose Agaton R. The Constitution of the Republic of the Philippines, 1987. 2nd ed. Quezon City: Central Professional Books, 1994.
Citace podle MLA (9th ed.)Sibal, Jose Agaton R. The Constitution of the Republic of the Philippines, 1987. 2nd ed. Central Professional Books, 1994.
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