Introduction to biotechnology : an agricultural revolution / Ray V. Herren. Biotechnology Herren, Ray V. Agricultural biotechnology. S494.5.B563 H47 2005 660.6 22 HEI Includes index Clifton Park, N.Y. : Delmar Learning, c2005. c2005. 2005 Text xv, 413 p. : http://www.loc.gov/catdir/enhancements/fy1103/2003061282-d.html http://www.loc.gov/catdir/enhancements/fy1103/2003061282-t.html http://www.loc.gov/catdir/enhancements/fy1103/2003061282-b.html eng