Koop, R. (2011). Grassroots Liberals: Organizing for local and national politics. UBC Press.
Chicago-čujuhus (17. p.)Koop, Royce. Grassroots Liberals: Organizing for Local and National Politics. Vancouver [B.C.]: UBC Press, 2011.
MLA-čujuhus (9. p.)Koop, Royce. Grassroots Liberals: Organizing for Local and National Politics. UBC Press, 2011.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.