Koop, R. (2011). Grassroots Liberals: Organizing for local and national politics. UBC Press.
芝加哥风格引文Koop, Royce. Grassroots Liberals: Organizing for Local and National Politics. Vancouver [B.C.]: UBC Press, 2011.
MLA引文Koop, Royce. Grassroots Liberals: Organizing for Local and National Politics. UBC Press, 2011.
警告：这些引文格式不一定是100％准确.