Van Emden, Helmut Fritz <br/><br/>
Pest control and its ecology 
Helmut Fritz van Emden 
 - London  Edward Arnold  1974 
 - [4], 60 p.  ill  23 cm. 
 - The Institute of Biology's studies in biology  no. 50 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Insect pests--Control<br/>Pesticides--Environmental aspects
<br/><br/><label>Dewey Class. No.: </label>632  / .7