Survey of Underground Hydraulic Coal Mining Technology - 4 Volume Set. Volume 4 - Final Report. Appendix C. References and Bibliography With Abstracts.
NTIS: PB 251 496 Available for Reference At Bureau Libraries :282 pages
In part 1 is a list of key words used to sort accessions, together with the identifying color code and number of the corresponding plastic "key word card." Part 2 contains copies of the 5- by 8-inch accession cards for all items collected that were judged to be relevant to underground hydraulic coal mining. In many cases, abstracts are included. Abstracts were taken from the source, from other reviews, or from the preliminary screening of Russian documents. No attempt was made to write abstracts for every accession item.
CP; Final Contract Report;
NTIS Accession No.
NTIS: PB 251 496 Available for Reference At Bureau Libraries