zbad Advanced Placement Source
zebo Britannica Academic (formally Encyclopædia Britannica Online)
zbeb eBook Academic Collection (EBSCO)
zmnl eBooks on EBSCOhost
zbds EBSCO Discovery Service (Other Profiles)
zbds:usg EBSCO Discovery Service (Scholar View)
zbev Environment Complete
zber ERIC (at EBSCOhost)
zbfw Funk & Wagnalls New World Encyclopedia
zble Legal Source
zbm3 MAS Complete