Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.

APA Citation Edition Citation

Leusen, M. v. (1999). Viewshed and cost surface analysis using GIS (Cartographic modelling in a cell-based GIS 2). Archaeopress.

Chicago Citation Edition Citation

Leusen, Martijn van. Viewshed and Cost Surface Analysis Using GIS (Cartographic Modelling in a Cell-based GIS 2). Oxford: Archaeopress, 1999.

MLA Citation Edition Citation

Leusen, Martijn van. Viewshed and Cost Surface Analysis Using GIS (Cartographic Modelling in a Cell-based GIS 2). Archaeopress, 1999.