Klug, William S. <br/><br/>
Essentials of genetics / 
William S. Klug, Michael R. Cummings ; with contributions by Jon Herron, Charlotte Spencer, Sarah M. Ward. 
 - 4th ed. 
 - Upper Saddle River, N.J. :  Prentice Hall,  c2002. 
 - 1 v. (various pagings) :  ill. (some col.), maps ;  28 cm.