एपीए उद्धरण

Lo, C. P., & Yeung, A. K. W. (2005). Concepts and techniques of geographic information systems. Prentice-Hall of India.

शिकागो स्टाइल उद्धरण

Lo, C. P., और Albert K. W. Yeung. Concepts and Techniques of Geographic Information Systems. New Delhi: Prentice-Hall of India, 2005.

एमएलए उद्धरण

Lo, C. P., और Albert K. W. Yeung. Concepts and Techniques of Geographic Information Systems. Prentice-Hall of India, 2005.