How boys & girls differ  the first six years /  [videorecording] : 
 How boys and girls differ  [videorecording] 
writer & executive producer, Louise Welsh Schrank ; video production, Stage Fright Productions 
 - 1 videodisc (DVD) (20 min.) :  sd., col. ;  12 cm. +  1 teaching guide 
<br/><br/> Title from title screen 
<br/><br/>Narrator: Leslie Gray 
<br/><br/> Is it all in the genes and chromosomes? Recognizing these differences is essential to understanding child development 
<br/><br/><label>ISBN: </label> RM679.25 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sex differences (Psychology) in children.<br/>Child psychology.<br/>Child development.