Preservation microfilming; A guide for librarians and archivists: N.E. Gwinn, (Ed.). American Library Association, Chicago and London (1967) xxix + 207 pp. $40.00. ISBN 0-8389-0481-5
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论文评审过程：Available online 18 July 2002.
论文官网地址：https://doi.org/10.1016/0306-4573(88)90017-9
