Nordbeck, S., & Rystedt, B. (1972). Computer cartography : The mapping system normap: location models / [by] Stig Nordbeck [and] Bengt Rystedt: The mapping system normap: location models. Studentlitteratur.
Chicago Style (17th ed.) CitationNordbeck, Stig, and Bengt Rystedt. Computer Cartography : The Mapping System Normap: Location Models / [by] Stig Nordbeck [and] Bengt Rystedt: The Mapping System Normap: Location Models. Lund: Studentlitteratur, 1972.
MLA (9th ed.) CitationNordbeck, Stig, and Bengt Rystedt. Computer Cartography : The Mapping System Normap: Location Models / [by] Stig Nordbeck [and] Bengt Rystedt: The Mapping System Normap: Location Models. Studentlitteratur, 1972.
Warning: These citations may not always be 100% accurate.