General
A 1969 survey of US. reprint publishers (population: 274; survey size: 250; responding: 157 or 62.8%) showed that, of 216 firms for which data was available (some firms were interviewed directly rather than being sent a questionnaire), reprints were reported available in the following formats from the following numbers of firms:
hardcover books 183 (85.1%) firms
paperbound books 103 (47.7%) firms
microfilm 31(14.4%) firms
microfiche 15 ( 6.9%) firms
xerographic 12 ( 5.6%) firms
microcards 8 ( 3.7%) firms
micro-opaques 3 (1.4%) firms
ultramicrofiche 3 (1.4%) firms (Source)
