Pollard, A., Booy, R., Nadel, S., & Levin, M. (1996). Secondary cases of meningococcal disease.
芝加哥风格引文Pollard, A., R. Booy, S. Nadel, 与 M. Levin. Secondary Cases of Meningococcal Disease. 1996.
MLA引文Pollard, A., et al. Secondary Cases of Meningococcal Disease. 1996.
警告：这些引文格式不一定是100％准确.