Gaya APA

Ph.D., T, S. (2011). CORS and OPUS fo Engineers: Tools for Surveying and Mapping Applications . United States of America: American Society of Civil Engineering.

Gaya MLA

Ph.D., Tomas, Soler,. "CORS and OPUS fo Engineers: Tools for Surveying and Mapping Applications". United States of America: American Society of Civil Engineering, 2011. Text.