Johnson, D. E., & Samuels, M. L. (1979). Cancer of the genitourinary tract.
芝加哥风格引文Johnson, Douglas E., 与 Melvin L. Samuels. Cancer of the Genitourinary Tract. 1979.
MLA引文Johnson, Douglas E., 与 Melvin L. Samuels. Cancer of the Genitourinary Tract. 1979.
警告：这些引文格式不一定是100％准确.