zbac Academic Search Complete
zebo Britannica Academic (formally Encyclopædia Britannica Online)
dlg1 Digital Library of Georgia
ebcn Ebook Central (ProQuest)
zbgh eBook High School Collection (EBSCO)
zbk8 eBook K-8 Collection (EBSCO)
zbds:pubk12 EBSCO Discovery Service (High School)
zbds EBSCO Discovery Service (Other Profiles)
zbev Environment Complete
zbfw Funk & Wagnalls New World Encyclopedia
zbth International Bibliography of Theater & Dance with Full Text (IBTD)