1. 01. English Non Fiction Cloning : frontiers of genetic engineering / by Jefferis, David. Publication: New York : Crabtree, 1999 . 32 p. : , Includes index. 29 cm. Date:1999 Availability: Copies available: (1), Actions:
2. 01. English Non Fiction Cloning and genetic engineering / by Cefrey, Holly. Publication: Danbury, Conn. : Children's Press, 2002 . 48 p. : 23 cm. Date:2002 Availability: Copies available: (1), Actions: