SUTOPO, A. (1998). English for civil engineering. 1. LC UMS.
芝加哥风格引文SUTOPO, Anam. English for Civil Engineering. 1. Surakarta: LC UMS, 1998.
MLA引文SUTOPO, Anam. English for Civil Engineering. 1. LC UMS, 1998.
警告：这些引文格式不一定是100％准确.
APA引文