Resources and conservation. 
 Resource recovery and conservation. 

 - Amsterdam :  Elsevier Science,  1975. 
<br/><br/> UKM: v.1-15 (1975-1987).  Judul asal'Resources recovery and conservstion', 1975-1981. 
<br/><br/><label>ISSN: </label>0166-30970304-3967 
 = Resources and conservation. Resources and conservation. 
<br/><br/><label>Subjects--Uniform Titles: </label><br/>Conservation of natural resources--Periodicals.
<br/><br/><label>Subjects--Topical Terms: </label><br/>Recycle (waste, etc.)--Periodicals.<br/>Salvage (Waste, etc.)--Periodicals.