Home / Standards / GB/T 19730 GB/T 19730 Micrographics — Operating procedures for microfilming of periodicals — 2005 缩微摄影技术期刊的缩微拍摄操作程序 - 2005 Standard Type GBT ICS N/A CCS N/A Status N/A Issue Date N/A Implementation N/A Responsible Dept N/A Drafting Unit N/A