1. 01. English Non Fiction The digestive system. by Parramon,Merce Publication: New York : Chelsea House Publishers, 1994 . 31 p. : , Includes index. 28 cm. Date:1994 Availability: Copies available: (1), Actions:
2. 01. English Non Fiction The digestive and excretory systems / by Gold, Susan Dudley. Publication: Berkeley Heights, NJ, USA : Enslow Publishers, 2004 . 48 p. : 24 cm. Date:2004 Availability: Copies available: (1), Actions: