"Oxford Reference Online Premium (OROP) combines rich and scholarly resources offered by acclaimed titles in the Oxford Companions series with authoritative quick-reference coverage of the full subject spectrum. Since launch, the site has expanded to include access to over 170 ready reference dictionaries, as well as an ever-growing list of Oxford Companions titles, over 450 political and geographical maps, and timelines to key events throughout history. Updated at least three times a year, Oxford Reference Online Premium is an absolute must-have for all libraries and institutions.
Premium Collection subscribers can enhance their collection with the Literature and Western Civilization collections. These are fully cross-searchable with the Premium Collection, and include a comprehensive selection of acclaimed reference titles. Both are available exclusively to Premium Collection subscribers for a small additional annual fee."
Also know as "ORO" (From the vendor)
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