Runquist, Olaf Allan. <br/><br/>
Chemical principles :  a programmed text / 
by Olaf Runquist, Clifford J. Creswell, J. Thomas Head. 
 - Minneapolis :  Burgess Pub. Co.,  1968. 
 - iii, 462 p. :  ill. 
<br/><br/><label>LCCN: </label>68015090  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Chemistry--Programmed instruction.