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ISSN:1545-0465|22|1|90-97

Cartography and Geographic Information Society‎(1995)‎

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By Onsrud Harlan J.   in Journal of Geography in Higher Education

ISSN:1466-1845|29|1|123-137

Routledge Ltd‎(2005)‎

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By van Loenen Bastiaan   Onsrud Harlan J.   in Cartography and Geographic Information Science

ISSN:1545-0465|31|1|3-17

Cartography and Geographic Information Society‎(2004)‎

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