Perfecto, W. S. (1978). Education and manpower development. Technology Resource Center.
芝加哥风格引文Perfecto, Waldo S. Education and Manpower Development. Makati, Metro Manila: Technology Resource Center, 1978.
MLA引文Perfecto, Waldo S. Education and Manpower Development. Technology Resource Center, 1978.
警告：这些引文格式不一定是100％准确.