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

APA Zitierstil

Marble, D. F., & Machovina, B. (1997). A GIS-based approach to estimating the human effort involved in movement over natural terrain. Helsinki.

Chicago Zitierstil

Marble, Duane F., and Brett Machovina. A GIS-based Approach to Estimating the Human Effort Involved in Movement Over Natural Terrain. Helsinki, 1997.

MLA Zitierstil

Marble, Duane F., and Brett Machovina. A GIS-based Approach to Estimating the Human Effort Involved in Movement Over Natural Terrain. Helsinki, 1997.