著者名,書名,版表示,出版者名,出版年,シリーズ名,番号,ISBN,ISSN,URL "Hardy, H. Reginald (Henry Reginald) and Pennsylvania State University. Rock Mechanics Laboratory and Conference on Acoustic Emission/Microseismic Activity in Geologic Structures and Materials","Acoustic emission/microseismic activity in geologic structures and materials : proceedings of the fourth conference, held at the Pennsylvania State University, University Park, Pennsylvania, October 22-24, 1985",,Trans Tech Publications,1989,Series on rock and soil mechanics,,0878490817,,https://cir.nii.ac.jp/crid/1130282271027408000