Seidman, L. W. (1989). Productivity: The american advantage. New York: Simon and Schuster.
Trích dẫn kiểu ChicagoSeidman, L. William. Productivity: The American Advantage. New York: Simon and Schuster, 1989.
MLA引文Seidman, L. William. Productivity: The American Advantage. New York: Simon and Schuster, 1989.
警告:这些引文格式不一定是100%准确.