Robles, W. M. (2009). Youth at work: A needs assessment of integrating basic labor education in selected laboratory high schools in Metro Manila. Philippine Journal of Labor and Industrial Relations.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Robles, Walter M. "Youth at Work: A Needs Assessment of Integrating Basic Labor Education in Selected Laboratory High Schools in Metro Manila." Philippine Journal of Labor and Industrial Relations 2009.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Robles, Walter M. "Youth at Work: A Needs Assessment of Integrating Basic Labor Education in Selected Laboratory High Schools in Metro Manila." Philippine Journal of Labor and Industrial Relations, 2009.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.