Langhans, Robert W., <br/><br/>
Greenhouse managment :  A guide to structures, environmental control, materials handling, crop programming and busines analysis / 
Robert w. langhans ; line drawing by Virginia c. langhans 
 - 2 
 - 270 páginas 
<br/><br/><label>ISBN: </label>0960400613 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Administración de invernaderos
<br/><br/><label>LC Class. No.: </label>SB415  / L35 1983