Integrated crop protection  proceedings of a symposium held at Valence, France, 18-19 June 1980 
edited by P. Graffin 
 - Rotterdam  A. A. Balkema  1982 
 - viii, 407p.  ill. 
<br/><br/> Text in English, French, German and Italian 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Pests--Integrated control