Pearson, Allen M <br/><br/>
The role of pine oil in cattle fly sprays  / 
Allen M. Pearson 
 - Newark, Delaware  :   Agricultural Experiment Station 
 - 63 p. 
 - Delaware. Agri. Exp. Sta., Bull.; 196 .
<br/><br/><label>LCCN: </label>202064 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Petróleo como insecticida  Insecticidas