Gaddis, Charles W. <br/><br/>
Laboratory exercises for independent study in biology 1-A / 
by Charles W. Gaddis. 
 - Minneapolis :  Burgess Publishing Company,  1968. 
 - 127 p. :  ill. ;  28cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Biology--Laboratory manuals.