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

APA Citation Edition Citation

Boekschoten, G. R., & Stapert, D. (1993). Rings and sectors: A computer package for spatial analysis ; with examples from Oldeholtwolde and Gönnersdorf. Universa.

Chicago Citation Edition Citation

Boekschoten, Gijsbert R., und Durk Stapert. Rings and Sectors: A Computer Package for Spatial Analysis ; with Examples from Oldeholtwolde and Gönnersdorf. Wetteren: Universa, 1993.

MLA Citation Edition Citation

Boekschoten, Gijsbert R., und Durk Stapert. Rings and Sectors: A Computer Package for Spatial Analysis ; with Examples from Oldeholtwolde and Gönnersdorf. Universa, 1993.