Ormrod, D.P. <br/><br/>
Air pullution in greenhouses  / 
by D.P. Ormrod and T.J. Blom 
 - Ontario, Canada  :   Ministry of Agriculture and Food 
 - 4 p. 
<br/><br/><label>LCCN: </label>198678 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Aire -- Contaminación -- Efecto en plantas<br/>Cultivos en invernadero <br/>Invernaderos