Greene, Carol <br/><br/>
Why Boys & Girls Are Different 

 -  Concordia Publishing House  1982 
 - Learning About Sex #1 .
<br/><br/><label>ISBN: </label>9780758614094 
<br/><br/><label>Subjects--Topical Terms: </label><br/>This book opens the door to discussion with your preschooler, providing the proper amount of information for this special level of development.  Explores similarities among children, which leads easily to the differences.