Gaya APA
Hartono, . (1972).
Application of Infrared Survey in Geothermal Exploration (Maret 1972).
Bandung:
Direktorat Vulkanologi.
Gaya MLA
Hartono, .
"Application of Infrared Survey in Geothermal Exploration".
Maret 1972
Bandung:
Direktorat Vulkanologi,
1972.
Text.