APA ציטוט

Chang, K. s. (2006). Introduction to geographic information systems. Boston: McGraw- Hill.

Trích dẫn kiểu Chicago

Chang, Kang- stung. Introduction to Geographic Information Systems. Boston: McGraw- Hill, 2006.

ציטוט MLA

Chang, Kang- stung. Introduction to Geographic Information Systems. Boston: McGraw- Hill, 2006.