by Gelman, Rita Golden.

[ 01. English Non Fiction ] Authors: Freem, Elroy,--ill. Published by : Scholastic, (New York :) Physical details: [32] p. : col. ill. ; 23 cm. Subject(s): Immune response. | Skin --Physiology. | Mucus. | Infection --Prevention. Year : 1992 Item type : 01. English Non Fiction