Kussharo Lake Tree, Study 9, Kotan, Hokkaido, Japan. 2009

Joint Army-Navy Intelligence Study of Northern Japan, Hokkaido, Regional Summary, JANIS 81 September 1944, Chapter 9

Lake Toya, Hokkaido, from the series "Collection of Scenic Views of Japan, Eastern Japan Edition" (Nihon fukei shu higashi Nihon hen, Hokkaido Toyako)

Geomorphological study on the periglacial slope deposits in the northern Hidaka mountains, Hokkaido, Japan

Joint Army-Navy Intelligence Study of Northern Japan, Hokkaido, Regional Summary, JANIS 81-2, Chapter 14

Genesis of rhyolitic magma due to partial melting of granitoids : a case study of the Miocene Pinneshiridake rhyolite, northern Hokkaido, Japan

Study on wall rock alteration related to polymetallic vein-type deposits, with special reference to the Toyoha mine, southwest Hokkaido, Japan

OPNAV-16-V No. S151, 1 December 1944, Japan approach-target folder No. 1, Northern Hokkaido. Report No. 9-a(9), USSBS Index Section 6

Joint Army-Navy Intelligence Study of Northern Japan, Hokkaido, Regional Summary, JANIS 81-1, May 1945, Figure S-11 to S-VIII-26

OPNAV-16-.V No. S153, 1 December 1944, Japan approach-target folder No. 3. Southeast Hokkaido. Report No. 9-a(11), USSBS Index Section 6

Joint Army-Navy Intelligence Study of Southwest Japan, Kyushu, Sikoku and Southwestern Honshu, Regional Summary, JANIS 84, August 1944, Chapter 9-15

OPNAV-16-V No. S152, 1 November 1944, Japan approach-target folder No. 2, Southwest Hokkaido--North Honshu. Report No. 9-a(10), USSBS Index Section 6