Sapsford, R., & Jupp, V. (2006). Data collection and analysis (2nd ed.). Sage.
芝加哥风格引文Sapsford, Roger, 与 Victor Jupp. Data Collection and Analysis. 2nd ed. London: Sage, 2006.
MLA引文Sapsford, Roger, 与 Victor Jupp. Data Collection and Analysis. 2nd ed. Sage, 2006.
警告:这些引文格式不一定是100%准确.