Spector, P. E. (1992). Summated rating scale construction: An introduction. Sage.
芝加哥风格引文Spector, Paul E. Summated Rating Scale Construction: An Introduction. Newbury Park, Calif: Sage, 1992.
MLA引文Spector, Paul E. Summated Rating Scale Construction: An Introduction. Sage, 1992.
警告：这些引文格式不一定是100％准确.