Philippines. Bureau of Labor and Employment Statistics. (1990). Occupational wages survey. Department of Labor and Employment, Bureau of Labor and Employment Statistics.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Philippines. Bureau of Labor and Employment Statistics. Occupational Wages Survey. Manila: Department of Labor and Employment, Bureau of Labor and Employment Statistics, 1990.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Philippines. Bureau of Labor and Employment Statistics. Occupational Wages Survey. Department of Labor and Employment, Bureau of Labor and Employment Statistics, 1990.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.