Lua APA (7ú heag.)

Chang, K. (2019). Introduction to Geographic Information Systems (24th.). Mc Graw Hill Education Pvt. Ltd.

Lua i Stíl Chicago (17ú heag.)

Chang, Kang-Tsung. Introduction to Geographic Information Systems. 24th. Chennai: Mc Graw Hill Education Pvt. Ltd, 2019.

Lua MLA (9ú heag.)

Chang, Kang-Tsung. Introduction to Geographic Information Systems. 24th. Mc Graw Hill Education Pvt. Ltd, 2019.

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