1.    ADA Accessibility Guidelines for Outdoor Developed Areas. United States Architectural and Transportation Barriers Compliance Board. Online: https://www.access-board.gov/guidelines-and-standards/recreation-facilities/outdoor-developed-areas .
2.    ADA Quick Tips-Tax Incentives.  The ADA National Network. Online: https://adata.org/factsheet/quicktips-tax.
3.    Community Health Inclusion Index.  National Center on Health, Physical Activity and Disability. Online: http://www.nchpad.org/1273/6358/Community~Health~Inclusion~Index.
4.    Definition of Inclusion.  National Center on Health, Physical Activity and Disability. Online: http://www.nchpad.org/1456/6380/Definition~of~Inclusion.
5.    National Park and Recreation Month.  National Parks and Recreation Association. Online: http://www.nrpa.org/july/
6.    Public Rights of Way Accessibility Guidelines.  United States Architectural and Transportation Barriers Compliance Board. Online: https://www.access-board.gov/guidelines-and-standards/streets-sidewalks.