Investigating diversity and limits :  Middle School Science & Technology.  Level B / 
 Science & Technology  Diversity and Limits 
BSCS [Bioglogical Sciences Curriculum Study]. 
 - Second ed. 
 - 3 v. :  illus. :  28 cm. 
 - Dubuque, Ia. :  Kendall/Hunt,  1952. 
<br/><br/> "BSCS Middle School" -- on cover. 
<br/><br/>V.1. Teacher's edition -- V.2. Teacher's resource book -- V.3. Students's text. 
<br/><br/> Grade 7. 
<br/><br/><label>ISBN: </label>0787253782 (Student's edition) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science--Study and teaching (Secondary)<br/>Science--Textbooks.<br/>Technology--Study and teaching (Secondary)<br/>Technology--Textbooks.