Tohutoro APA (7th ed.)

Star, J., & Estes, J. (1990). Geographic Information Systems: An introduction. Prentice Hall.

Tohutoru Kātū Chicago (17th ed.)

Star, Jeffrey, me John Estes. Geographic Information Systems: An Introduction. Englewood Cliffs, N.J.: Prentice Hall, 1990.

Tohutoro MLA (9th ed.)

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