توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

Philippines. Bureau of Labor and Employment Statistics. (1991). 1990 occupational wages survey. Bureau of Labor and Employment Statistics, Department of Labor and Employment.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

Philippines. Bureau of Labor and Employment Statistics. 1990 Occupational Wages Survey. Manila: Bureau of Labor and Employment Statistics, Department of Labor and Employment, 1991.

توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)

Philippines. Bureau of Labor and Employment Statistics. 1990 Occupational Wages Survey. Bureau of Labor and Employment Statistics, Department of Labor and Employment, 1991.