Skalski, J. R. <br/><br/>
Wildlife demography :  analysis of sex, age, and count data / 
John R. Skalski ; Kristen E. Ryding ; Joshua J. Millspaugh 
 - Amsterdam ;  Boston :  Elsevier Academic Press,  c2005. 
 - xvii, 636 p. :  ill. ;  27cm