APA引文

ball Desmond and Babbage Ross. (1989). Geographic information systems: Defence applications. Pergamon.

Chicago Edition Citation

ball Desmond and Babbage Ross. Geographic Information Systems: Defence Applications. Australia: Pergamon, 1989.

MLA引文

ball Desmond and Babbage Ross. Geographic Information Systems: Defence Applications. Pergamon, 1989.

警告：這些引文格式不一定是100％准確.