Guide to the use of PACER, the data retrieval and update system for the National Coal Resources Data System (NCRDS)
By: by Kathleen K. Krohn ... [et al.]
Contributors: Krohn, Kathleen K; Geological Survey (U.S.)
Series: Open-file report -- 82-291; Open-file report (Geological Survey (U.S.)) -- 82-291
Publisher: U.S. Dept. of the Interior, Geological Survey
Published: 1982
Place of publication: [Reston, Va.?]
Language: eng
Format: Microform
Subjects: Coal -- Data processing
Notes: Microfiche. [Denver, Colo. : U.S. Geological Survey, 1982?]. 2 microfiches ; 11 x 15 cm

Bibliography: leaf 99