Harris, Robert. <br/><br/>
A higher form of killing :  the secret story of gas and germ warfare / 
Robert Harris and Jeremy Paxman. 
 - London :  Chatto & Windus,  1982 
 - [224] p. ;  23 cm. 
<br/><br/><label>ISBN: </label>0701125853 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Biological warfare--History<br/>Chemical warfare--History