ebrary, Inc, & Collins, R. J. (2011). Project management. Nova Science Publishers, Inc..
芝加哥风格引文ebrary, Inc, 与 Robert J. Collins. Project Management. Hauppauge, NY: Nova Science Publishers, Inc., 2011.
MLA引文ebrary, Inc, 与 Robert J. Collins. Project Management. Nova Science Publishers, Inc., 2011.
警告：这些引文格式不一定是100％准确.