Yeung, A. K. (2006). Concepts and techniques of geographic information: Systems. Prentice-.
Citazione stile Chigago Style (17a edizione)Yeung, Albert K.W. Concepts and Techniques of Geographic Information: Systems. New Delhi: Prentice-, 2006.
Citatione MLA (9a ed.)Yeung, Albert K.W. Concepts and Techniques of Geographic Information: Systems. Prentice-, 2006.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.