BioCycle.
[Emmaus, PA : JG Press,
c1981-
Title from cover.
Bibliography of agriculture
BioBusiness
Biological abstracts
Chemical abstracts
Coal abstracts
Energy information abstracts
Engineering index annual (1968)
Engineering index monthly (1984)
Engineering index bioengineering abstracts
Engineering index energy abstracts
Environment abstracts
Excerpta medica
Life sciences collection
Metals abstracts
Selected water resources abstracts
Organic wastes
Compost
Compost science/land utilization