Biology by inquiry :  a course in experimental biology for secondary schools / 
Robert A. Clarke, ...[et al]. 
 - London :  Heinemann Educational Books,  1970. 
 - vols. : ill. 
<br/><br/> "With a foreword by Michael Swann" 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Biology.