SCHEAFFER, R. L., MENDENHALL, W., & OTT, L. (1979). Elementary survey sampling. -- 2nd ed. Duxbury.
芝加哥风格引文SCHEAFFER, Richard L., William MENDENHALL, 与 Lyman OTT. Elementary Survey Sampling. -- 2nd Ed. Nort Scituate: Duxbury, 1979.
MLA引文SCHEAFFER, Richard L., et al. Elementary Survey Sampling. -- 2nd Ed. Duxbury, 1979.
警告：这些引文格式不一定是100％准确.