Philippines. Department of Public Works, Transportation and Communications. Planning and Project Development Office. (1974). Leyte Integrated Area Development: Interim report. The Office.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Philippines. Department of Public Works, Transportation and Communications. Planning and Project Development Office. Leyte Integrated Area Development: Interim Report. [Manila]: The Office, 1974.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Philippines. Department of Public Works, Transportation and Communications. Planning and Project Development Office. Leyte Integrated Area Development: Interim Report. The Office, 1974.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.