Lo, C. P. 1., & Yeung, A. K. W. (2007). Concepts and techniques of geographic information systems (2. bs.). Upper Saddle River, NJ: Pearson Prentice Hall.
استشهاد بنمط شيكاغوLo, C. P. 1939-, and Albert K. W. Yeung. Concepts and Techniques of Geographic Information Systems. 2. bs. Upper Saddle River, NJ: Pearson Prentice Hall, 2007.
MLA استشهادLo, C. P. 1939-, and Albert K. W. Yeung. Concepts and Techniques of Geographic Information Systems. 2. bs. Upper Saddle River, NJ: Pearson Prentice Hall, 2007.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.