Putnam, R. D. (2000). Bowling alone: The collapse and revival of American community. Simon & Schuster.
芝加哥风格引文Putnam, Robert D. Bowling Alone: The Collapse and Revival of American Community. New York: Simon & Schuster, 2000.
MLA引文Putnam, Robert D. Bowling Alone: The Collapse and Revival of American Community. Simon & Schuster, 2000.
警告：这些引文格式不一定是100％准确.