本の玉手箱

113 Studies on the structure of lignite, brown coal, and bituminous coal in Japan(日本産亜炭,褐炭及瀝青炭の構造研究)

113 Studies on the structure of lignite, brown coal, and bituminous coal in Japan(日本産亜炭,褐炭及瀝青炭の構造研究)の画像左側

113 Studies on the structure of lignite, brown coal, and bituminous coal in Japan(日本産亜炭,褐炭及瀝青炭の構造研究)の画像右側