A Celebration of Women Writers ed. by Ockerbloom (PD)
Clear & Simple by National Institutes of Health (PD)
The Roadrunner’s Guide to English  by Crisp, Postell, and Whitesell (Custom License)
University of North Carolina College Writing by The Writing Center at UNC-Chapel Hill (CC BY-NC-ND)
Writing Commons by Writing commons (CC BY-NC-ND)
Writing Poetry by OpenLearn (CC BY-NC-SA)
Writing Unleashed by Priebe, Anderson, and Marman (GFDL)

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