Application of stereoscopic (3-D) slides to roof and rib hazard recognition training /
- 出版日期：1988.
- 出版者：U.S. Dept. of the Interior, Bureau of Mines,
- 页数：15 p. :
- 出版地：Pittsburgh, PA :
- 第一责任说明：by Edward A. Barrett, William J. Wiehagen, and Robert H. Peters.
- 尺寸：28 cm.
- 分类号：a725
MARC全文
02h0005918 20090324100058.0 s1988 paua frb |000|||eng | NGL a725 Barrett, Edward A. Application of stereoscopic (3-D) slides to roof and rib hazard recognition training / by Edward A. Barrett, William J. Wiehagen, and Robert H. Peters. Pittsburgh, PA : U.S. Dept. of the Interior, Bureau of Mines, 1988. 15 p. : ill. ; 28 cm. Information circular ; 9210 Includes bibliographical references: p. 12. Mine safety ; Ground control (Mining) ; Mine roof control. ; Transparencies in education. ; Photography, Stereoscopic. Study and teaching ; Audio-visual aids. aWiehagen, William J. ; aPeters, Robert H. Information circular (United States. Bureau of Mines) ; 9210. aCN bNGL NGL P 720.66 In3 v9210 ; h1 fqyl0803