Harris, Robie H. <br/><br/>
It's perfectly normal :   a book about changing bodies, growing up, sex and sexual health / 
Robie Harris ; illustrated bu Michael Emberley 
 - Cambridge, Mass. :  Candlewick,  c1994. 
 - 93 p. : il. ; 30 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sexo - Instrucción para niños<br/>Sexo - Instrucción para adolescentes<br/>Higiene sexual - Literatura juvenil
<br/><br/><label>Dewey Class. No.: </label>613.907  / H313