Schwartz, R. L., Foy, B. D., & Phoenix, T. (2006). Intermediate Perl (2nd ed.). O'Reilly.
芝加哥风格引文Schwartz, Randal L., Brian D. Foy, 与 Tom Phoenix. Intermediate Perl. 2nd ed. Beijing ; Sebastopol, CA: O'Reilly, 2006.
MLA引文Schwartz, Randal L., et al. Intermediate Perl. 2nd ed. O'Reilly, 2006.
警告：这些引文格式不一定是100％准确.