Collins, H. (1972). Office communications technology. Long Range Intelligence Division of Telecommunications Headquarters.
芝加哥风格引文Collins, Hugh. Office Communications Technology. Lond.: Long Range Intelligence Division of Telecommunications Headquarters, 1972.
MLA引文Collins, Hugh. Office Communications Technology. Long Range Intelligence Division of Telecommunications Headquarters, 1972.
警告：这些引文格式不一定是100％准确.