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Dyfyniad Arddull ChicagoAguirre, Vyva Victoria Magsarili. Subject and Title Index to Executive Orders, February 25, 1986-July 26, 1987. Quezon City: U.P. Legal Resources Center, 1987.
Dyfyniad MLAAguirre, Vyva Victoria Magsarili. Subject and Title Index to Executive Orders, February 25, 1986-July 26, 1987. U.P. Legal Resources Center, 1987.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.