The second skin:  Instructor's manual 
by Horn, J. Marilyn 
 - U.S.A,  Houghton mifflin company,  1975. 
 - 122 p. 
<br/><br/><label>ISBN: </label>0-395-18780-X 
<br/><br/><label>LC Class. No.: </label>GT 521  / .M37 1975