APA引文

Estes, J. S. ;. J. (1990). Geographic Information Systems An Introduction. Prentice Hall.

Chicago Style (17th ed.) Citation

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

MLA引文

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

警告：這些引文格式不一定是100％准確.