APA (7th ed.) Citation

Star, J., & Estes, J. E. (1990). Geographic information systems: An introduction. Prentice Hall.

Chicago Style (17th ed.) Citation

Star, Jeffrey, and John E. Estes. Geographic Information Systems: An Introduction. Englewood Cliffs, New Jersey: Prentice Hall, 1990.

MLA (8th ed.) Citation

Star, Jeffrey, and John E. Estes. Geographic Information Systems: An Introduction. Prentice Hall, 1990.