A systematic analysis of design and operational relationships in shortwall mining
By: Osman Unutmaz
Publisher: [publisher not identified]
Published: 1980
Place of publication: [New York]
Language: eng
Number of pages: 145
Subjects: Coal mines and mining
Other titles: Shortwall mining.
Notes: Microfilm (positive)  Ann Arbor, Mich. : University Microfilms International, 1980. -- 1 reel ; 35 mm. -- ([Publication] - University Microfilms International ; 80-23,557)

Thesis--Columbia University.

Bibliography: leaves 142-145.