aly, e. m., & tawfekm mohamed hassan ; supervisor. (2008). application of six sigma. {l.n}.
芝加哥风格引文aly, essam mohamoud, 与 tawfekm mohamed hassan ; supervisor. Application of Six Sigma. cairo: {l.n}, 2008.
MLA引文aly, essam mohamoud, 与 tawfekm mohamed hassan ; supervisor. Application of Six Sigma. {l.n}, 2008.
警告：这些引文格式不一定是100％准确.