1. https://www.monu-magazine.com/issues.htm 

2. Gammage, Grady. “Suburbs, Sprawl, and Sustainability,” in The Future of the Suburban City: Lessons from Sustaining Phoenix, 1-21. Washington: Island Press/Center for Resource Economics, 2016.
On page 8, Figure 1.2.  "The Central Arizona Project Canal moving Colorado River water through Phoenix."

3. Diagramme no. 7: "Social Cities". Source: Howard (1898).

4. Wheeler, Stephen M., “The Evolution of Urban Form in Portland and Toronto: Implications for Sustainability Planning,” in Local Environment, p. 330. Department of City and Regional Planning, University of California at Berkeley, 2003.  Figure 9. Main forces affecting the evolution of regional form.

5. Letchworth Garden City and its surroundings based on a map of Letchworth in 1921. Source: Adapted from (Purdom 1921). https://www.researchgate.net/figure/3-Letchworth-Garden-City-and-its-surroundings-based-on-a-map-of-Letchworth-in-1921_fig13_341194413

6. Beckerman, Michele. "Photo Essay: Radburn, New Jersey – the Town for the Motor Age," Re"Source, 2020. https://resource.rockarch.org/story/photos-radburn-new-jersey-planned-community-1920s/

7. McHarg, Ian. A Quest for Life: An Autobiography , 1996. "The original layer cake representation of phenomena," p. 258. https://www.researchgate.net/figure/The-original-layer-cake-representation-of-phenomena-Source-McHarg-1996a-258_fig1_335512892

8. (a) Geddes' 1909 valley section and (b) Duany's 2005 transect system Source: P. Geddes (1915) and A. Duany (2005) https://www.researchgate.net/figure/a-Geddes-1909-valley-section-and-b-Duanys-2005-transect-system-Source-P-Geddes_fig2_366915317

9. Proposal for Downsview Park, Toronto, 1999. Images by James Corner Field Operations with Nina-Marie Lister.  https://www.researchgate.net/figure/Proposal-for-Downsview-Park-Toronto-1999-Images-by-James-Corner-Field-Operations-with_fig3_318702469

10. Tree City, 2000, OMA. https://www.oma.com/projects/downsview-park

11. Anurada Mathur and Dilip da Cunha, Airport Crossing, from SOAK: Mumbai in an Estuary, 2009. https://placesjournal.org/article/ecology-and-design-parallel-genealogies/

12. Map of Toronto Soil Type 1913: Title: Toronto and vicinity: Department of Lands, Forests and Mines: Bureau of Mines; Hearst, W.H. & Miller, Willet G. Year: 1913