Mead, R. <br/><br/>
Statistical methods in agriculture and experimental biology / 
Roger Mead, Robert N. Curnow ; Anne M. Hasted 
 - 3rd ed. 
 - Boca Raton, Fla.:  Chapman & Hall/CRC,  2003. 
 - xvi, 472 p. :  ill. ;  24 cm 
 - Texts in statistical science .