1913
Japan. Coal Resources of the
McInnes, William; Dowling, D
2249.019
Ishikari, Japan. Coal Resour
Oinouye, Y.
2249.020
Chikuho, Japan. Coal Resourc
Suzuki, F.; Kido, C.; Matsud
2249.021
Karatsu and Sasebo, Japan. C
Otsuki, Y.
2249.022