Skidmore, S. (1990). Introducing systems design (2th .ed.). NCC Blackwell.
芝加哥风格引文Skidmore, Steve. Introducing Systems Design. 2th .ed. Manchester: NCC Blackwell, 1990.
MLA引文Skidmore, Steve. Introducing Systems Design. 2th .ed. NCC Blackwell, 1990.
警告：这些引文格式不一定是100％准确.