AGRICOLA (AGRICultural OnLine Access)
USDA. National Agricultural Library.
AGRICOLA is a bibliographic database of citations to the agricultural literature
IPM (Integrated Pest Management) Bibliography
IPM Practitioners Association.
Annotated Bibliographies on the Ecology and Management of Invasive Species (scroll down to section)
Garry Oak Ecosystem Recovery Team.
Native Plants Bibliography
Maryland Native Plant Society.
Non Indigenous Species Bibliographic Database
Prince William Sound Regional Citizens' Advisory Council.