Maksimovic, S. D. Building seals by pneumatic stowing in mine closure operations by Slavoljub D. Maksimovic and John C. Draper - [Avondale, Md.] U.S. Dept. of the Interior, Bureau of Mines [1982] - ii, 23 p. ill. 28 cm. - Report of investigations 8729 . Subjects--Topical Terms: Mine fillingStone, CrushedCompressed air Dewey Class. No.: 622 s