Pearl, R., & Reed, L. J. (1925). A life table nomogram. [Johns HopkinsPress].
芝加哥风格引文Pearl, Raymond, 与 Lowell J. Reed. A Life Table Nomogram. [Baltimore, Md.]: [Johns HopkinsPress], 1925.
MLA引文Pearl, Raymond, 与 Lowell J. Reed. A Life Table Nomogram. [Johns HopkinsPress], 1925.
警告：这些引文格式不一定是100％准确.