Edstrom, J., Goodyear, J., & Kesler, H. (2013). Learning Apache Karaf. Packt Publishing.
芝加哥风格引文Edstrom, Johan, Jamie Goodyear, 与 Heath Kesler. Learning Apache Karaf. Birmingham: Packt Publishing, 2013.
MLA引文Edstrom, Johan, et al. Learning Apache Karaf. Packt Publishing, 2013.
警告：这些引文格式不一定是100％准确.