Alward, Ron. <br/><br/>
Low-cost passive solar qreenhouses  : a desing and construction guide 

 - Butte, Montana :  National Center for Appropriate Technology,  1980 
 - 173 p.  : ilus 
<br/><br/><label>LCCN: </label>19056 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Energía solar en agricultura.<br/>Horticultura--Aspectos económicos.<br/>Invernaderos.
<br/><br/><label>Dewey Class. No.: </label>631.34  / A5 1980