Kolby, J., & Vaughn, D. (2008). Nova's GMAT math bible. Nova Press.
芝加哥风格引文Kolby, Jeff, 与 Derrick Vaughn. Nova's GMAT Math Bible. Los Angeles, CA: Nova Press, 2008.
MLA引文Kolby, Jeff, 与 Derrick Vaughn. Nova's GMAT Math Bible. Nova Press, 2008.
警告：这些引文格式不一定是100％准确.