Williams, N. (1967). Linear and non-linear programming in industry. Pitman.
芝加哥风格引文Williams, N. Linear and Non-linear Programming in Industry. London: Pitman, 1967.
MLA引文Williams, N. Linear and Non-linear Programming in Industry. Pitman, 1967.
警告：这些引文格式不一定是100％准确.