Grey literature is that which cannot be easily acquired through normal bookselling channels and which is therefore difficult to identify and obtain. The file is updated monthly. Records for books, research reports, command papers, journal titles, and journal articles with their associated abstracts. Many of the items are in English, but material in French, German, Latin and Welsh is also covered. ESTC is a unique source for historical research into the eighteenth century.
All records contain library location codes.
Bibliographic records for all types of material printed with movable type before 1501. The British Library's record of preservation microforms created to archival standards when an item, usually a book or serial, is in danger of deterioration. The national libraries of the UK, the Republic of Ireland, and other libraries contribute records in fulfilment of the Mellon Microfilming Project. Gives a brief description of the original, location of other copies, and locations for the microform. Emphasis on audio-visual materials for teaching.