APA (7th ed.) Citation

(1999). Geothermal gradient map of Japan. Geological Survey of Japan.

Chicago Style (17th ed.) Citation

Geothermal Gradient Map of Japan. [Tsukuba]: Geological Survey of Japan, 1999.

MLA (9th ed.) Citation

Geothermal Gradient Map of Japan. Geological Survey of Japan, 1999.

Warning: These citations may not always be 100% accurate.