Dyfyniad APA

ebrary, Inc, Burrough, P. A., & Masser, I. (1998). European geographic information infrastructures: Opportunities and pitfalls. Taylor & Francis.

Dyfyniad Arddull Chicago

ebrary, Inc, P. A. Burrough, and Ian Masser. European Geographic Information Infrastructures: Opportunities and Pitfalls. London ; Bristol, PA: Taylor & Francis, 1998.

Dyfyniad MLA

ebrary, Inc, et al. European Geographic Information Infrastructures: Opportunities and Pitfalls. Taylor & Francis, 1998.

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