TY - BOOK AU - Williams, J AU - Ceccarelli, A AU - Wallace, A TI - Genetic engineering SN - 9781859960721 U1 - 616.WIL PY - 2001/// CY - Oxford ; Boston PB - BIOS KW - Genetic Engineering N1 - Previous ed.:/ J.G. Williams, A. Ceccarelli, N. Spurr, 1993. Includes index ER -