.Lo, C. P., & .Yeung, A. K. W. (2007). Concepts and techniques of geographic information systems (2nd ed.). Pearson Prentice Hall.
Citación estilo Chicago.Lo, C. P., and Albert K. W. .Yeung. Concepts and Techniques of Geographic Information Systems. 2nd ed. .Upper Saddle River, NJ: Pearson Prentice Hall, 2007.
Cita MLA.Lo, C. P., and Albert K. W. .Yeung. Concepts and Techniques of Geographic Information Systems. 2nd ed. Pearson Prentice Hall, 2007.
Warning: These citations may not always be 100% accurate.