APA (7th ed.) Citation
Thatcher, J. E., Bergmann, L., & O'Sullivan, D. (Spring2018). Speculative and constructively critical GIS. Canadian Geographer, 62(1), 4-7.
Chicago Style (17th ed.) Citation
Thatcher, Jim E., Luke Bergmann, and David O'Sullivan. "Speculative and Constructively Critical GIS." Canadian Geographer 62, no. 1 (Spring2018): 4-7.
MLA (9th ed.) Citation
Thatcher, Jim E., et al. "Speculative and Constructively Critical GIS." Canadian Geographer, vol. 62, no. 1, Spring2018, pp. 4-7.
Warning: These citations may not always be 100% accurate.