KALTHOFF, K. (2001). Analysis of biological development.-- ed.2. McGraw-Hill.
芝加哥风格引文KALTHOFF, Klaus. Analysis of Biological Development.-- Ed.2. Boston: McGraw-Hill, 2001.
MLA引文KALTHOFF, Klaus. Analysis of Biological Development.-- Ed.2. McGraw-Hill, 2001.
警告：这些引文格式不一定是100％准确.