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1.

図書
図書
1. A.S.T.M. standards on coal and coke
prepared by Committee D-5 on Coal and Coke
出版情報: Philadelphia : American Society for Testing Materials, 1940
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2.

図書
図書
2. Naphtenic lubricants and allied products
by A. Joseph Kraus ; edited by Erick Anderson
出版情報: North Bergen, c1940 , Tôkyô : Gakujutsu-bunken Shuppan-sha, 1943
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