187499 Leon-Guerrero, A. (2009). Social problems: Community, policy, and social action. California, CA : Pine Forge Press.
芝加哥风格引文187499 Leon-Guerrero, Anna. Social Problems: Community, Policy, and Social Action. California, CA : Pine Forge Press, 2009.
MLA引文187499 Leon-Guerrero, Anna. Social Problems: Community, Policy, and Social Action. California, CA : Pine Forge Press, 2009.
警告：这些引文格式不一定是100％准确.