Chang, K. (2019). Introduction to Geographic Information Systems (24th.). Mc Graw Hill Education Pvt. Ltd.
Chicago-čujuhus (17. p.)Chang, Kang-Tsung. Introduction to Geographic Information Systems. 24th. Chennai: Mc Graw Hill Education Pvt. Ltd, 2019.
MLA-čujuhus (9. p.)Chang, Kang-Tsung. Introduction to Geographic Information Systems. 24th. Mc Graw Hill Education Pvt. Ltd, 2019.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.