Field Guide: Maintaining Rain Gardens, Swales and Stormwater Planters (2013) (PDF) 9. Seattle Department of Neighborhoods (2013). Retrieved on 2023-09-15.p. 6 of document, p. 9 of PDF. Credited on p. 35 of document, p. 38 of PDF.Also available online at http://extension.oregonstate.edu/stormwater/sites/default/files/fieldguide.pdf
Jmabel ! talk 20:02, 15 September 2023 (UTC)Reply
