APA引文

John Trygve Soma. (1976). The U. S computer industry: An economic- legal analysis of its major growth factors. University Microfilms International.

Trích dẫn kiểu Chicago

John Trygve Soma. The U. S Computer Industry: An Economic- Legal Analysis of Its Major Growth Factors. University Microfilms International, 1976.

MLA引文

John Trygve Soma. The U. S Computer Industry: An Economic- Legal Analysis of Its Major Growth Factors. University Microfilms International, 1976.

警告：這些引文格式不一定是100％准確.