MCKELVEL, John J. METCALF, Robert L. <br/><br/>
FUTURE FOR INESCTICIDES : NEEDS & PROSPECTS 

 - SINGAPORE  John Wiley and Sons Inc., Singapore   1976 
<br/><br/><label>ISBN: </label>0 471 59860 7 
<br/><br/><label>Dewey Class. No.: </label>668.651  / MET/T