Marble Association of the Philippines & Philippines Export Product Selector (PEPS). (1994). Philippine marble sector profile. BETP and Commission of the European Communities.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Marble Association of the Philippines و Philippines Export Product Selector (PEPS). Philippine Marble Sector Profile. Makati City: BETP and Commission of the European Communities, 1994.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Marble Association of the Philippines و Philippines Export Product Selector (PEPS). Philippine Marble Sector Profile. BETP and Commission of the European Communities, 1994.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.