Investigations in biology 
prepared on behalf of the Calgary and District Biology Teachers' Association by Garth D. Benson ... (et al.) 
 - Don Mills, Ont.  Addison-Wesley  1977 
 - 129p. ill. 28cm 
<br/><br/><label>ISBN: </label>020106832X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Biology--Laboratory manuals