David J Maguire. Computer in Geography. Longman Sci～entific&Technical, 1989,178～180.
[2]
周荫清主编.信息理论基础.北京:北京航空航人大学出版社,1993.
[3]
陈学诊,陈洪亮.数据库原理与工程应用.北京:中国科技大学出版社,1996.
[4]
David Martin, Ian Bracken. The integration and socioeco～nomic and physical resource data for applied land manage～ment information systems. Applied Geography,1993, (13):45～53.
[5]
I D H Shepherd. Information Integration and GIS in Geo～graphical Information Systems: Principles and Application.Edited by D J Maguire, M F Goodchild and D W Rhind.London, Longman. 1991, (2):337～360.
