Blom, T.J. <br/><br/>
Carbon dioxide in greenhouses  / 
by T.J. Blom, W.A. Straver and F.J. Ingratta 
 - Ontario, Canada  :   Ministry of  Agriculture and Food 
 - 4 p. 
<br/><br/><label>LCCN: </label>198675 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Invernaderos